Ng, Jo Shien, Professor

Professor Jo Shien Ng

PhD, BEng

School of Electrical and Electronic Engineering

Professor of Semiconductor Devices

j.s.ng@sheffield.ac.uk
+44 114 222 5173

Full contact details

Professor Jo Shien Ng
School of Electrical and Electronic Engineering

Profile

I received my BEng degree and PhD degrees in electronic engineering from the University of 91ֱ��, in 1999 and 2003, respectively.

After a postdoctoral position within the EPSRC National Centre for III–V Technologies (now part of EPSRC National Epitaxy Facility) for material and device characterization, I became a Royal Society Research Fellow from 2006 to 2016.

I am currently Professor of Semiconductor Devices. My research is focused on developing a type of light sensors capable of measuring the weakest possible light signals.

There is a wide range of applications that rely on detection of the weakest possible light signal. An example is quantum cryptography (whose encryption key is made up of these very weak light), which currently offers the ultimate encryption safety.

Other key applications for highly sensitive light sensors are high-speed optical communication systems, laser-based ranging (autonomous vehicles and high-resolution geographical mapping), medical imaging (X-ray computed tomography), and non-contact temperature measurements.

These systems depend on detecting light so weak that each signal comprises only hundreds or photons (which make up the light) or even down to a single photon.

I am particularly interested in using avalanche photodiodes (APDs) to detect the very weak light. This semiconductor device senses light and gives electrical current that varies with the light intensity.

A process called avalanche gain (similar to how snow avalanche grows in size as it accelerates down a snow-covered mountain) in the APDs amplifies the electrical current, improving the system’s performance in terms of signal-to-noise ratios.

My current research themes include Si SPADs for detecting visible light from Raman spectroscopy; low-noise APDs for high-speed optical communication systems; measurements of avalanche gain and noise from novel materials; simulation models for APDs and single photon avalanche diodes (SPADs).

Qualifications

PhD (Electronic Engineering), University of 91ֱ�� 2003
BEng (Electronic Engineering), University of 91ֱ�� 1999

Research interests

Avalanche photodiodes (APDs)
Geiger mode avalanche photodiodes or Single Photon Avalanche Diodes (SPADs)
High-performance photodetectors for mid-infrared light detection

Publications

Journal articles

Liu Y, Jin X, Jung H, Lee S, Harun F, Ng JS, Krishna S & David JPR (2024) . Applied Physics Letters, 125(22).
Blain T, Shulyak V, Han IS, Hopkinson M, Ng JS & Tan CH (2024) . IEEE Transactions on Electron Devices, 1-6.
Sheridan B, Collins X, Taylor-Mew J, White B, Ng JS & Tan CH (2024) . Journal of Lightwave Technology, 1-7.
Taylor-Mew J, Collins X, White B, Tan CH & Ng JS (2024) . IEEE Transactions on Electron Devices, 1-0.
Cao Y, Blain T, Li L, Veitch JD, Collins XD, Ng JS & Tan CH (2024) . IEEE Transactions on Electron Devices, 1-5.
Hadfield RH, Leach J, Fleming F, Paul DJ, Tan CH, Ng JS, Henderson RK & Buller GS (2023) . Optica, 10(9), 1124-1124.
Gandan S, Pinel LLG, Morales JSD, Ng JS, Tan CH & Ochalski T (2023) . AIP Advances, 13(4), 045010-045010.
Cao Y, Blain T, Taylor-Mew JD, Li L, Ng JS & Tan CH (2023) . Applied Physics Letters, 122(5), 051103-051103.
Osman T, Lim LW, Ng JS & Tan CH (2022) . Optics Express, 30(12), 21758-21758.
Taylor-Mew JD, Petticrew JD, Tan CH & Ng JS (2022) . Optics Express, 30(11), 17946-17946.
Cao Y, Osman T, Clarke E, Patil PK, Ng JS & Tan CH (2022) . Journal of Lightwave Technology, 1-1.
Taylor-Mew J, Shulyak V, White B, Tan CH & Ng JS (2021) . IEEE Photonics Technology Letters, 33(20), 1155-1158.
Petticrew JD, Dimler SJ, Tan CH & Ng JS (2020) . Journal of Lightwave Technology, 38(15), 4183-4183.
Lim LW, Patil P, Marko I, Clarke EM, Sweeney S, Ng JS, David JPR & Tan CH (2020) . Semiconductor Science and Technology.
Shulyak V, Hayat MM & Ng JS (2020) . Journal of Lightwave Technology, 38(4), 989-995.
Petticrew J, Dimler S, Tan CH & Ng JS (2019) . Journal of Lightwave Technology.
Lim L, Tan CH, Ng J, Petticrew J & Krysa A (2019) . Journal of Lightwave Technology, 37(10).
Tan CH, Velichko A, Lim LW & Ng JS (2019) . Optics Express, 27(4), 5835-5842.
Petticrew JD, Dimler S & Ng JS (2018) . Journal of Open Research Software, 6(1).
Pinel LLG, Dimler SJ, Zhou X, Abdullah S, Zhang S, Tan CH & Ng JS (2018) . Optics Express, 26(3), 3568-3576.
Abdullah S, Tan CH, Zhou X, Zhang S, Pinel L & Ng AJS (2017) . Optics Express, 25(26), 33610-33616.
Petticrew JD, Dimler SJ, Zhou X, Morrison AP, Tan CH & Ng JS (2017) . IEEE Journal of Selected Topics in Quantum Electronics, 24(2).
Zhou X, Pinel L, Dimler S, Zhang S, Ng J & Tan C (2017) . IEEE Journal of Selected Topics in Quantum Electronics, 24(2).
Zhou X, Tan CH, Zhang S, Moreno M, Xie S, Abdullah S & Ng JS (2017) . Royal Society Open Science, 4, 170071-170071.
Cheong JS, Baharuddin A, Ng JS, Krysa AB & David JPR (2017) . Solar Energy Materials and Solar Cells, 164, 28-31.
Zhou X, White B, Meng X, Zhang S, Gutierrez M, Robbins M, Rojas LG, Nelms N, Tan CH & Ng JS (2017) . Optics Express, 25(3), 2818-2825.
Xie S, Zhou X, Zhang S, Thomson DJ, Chen X, Reed GT, Ng JS & Tan CH (2016) . Optics Express, 24(21), 24242-24242.
Zhou X, Zhang S, David J, Ng JS & Tan CH (2016) . IEEE Photonics Technology Letters, 28(22), 2495-2498.
Lioliou G, Meng X, Ng JS & Barnett AM (2016) . Journal of Applied Physics, 119(12), 124507-1-124507-9.
Auckloo A, Cheong JS, Meng X, Tan, CH, Ng JS, Krysa AB, Tozer RC & David JPR (2016) . Journal of Instrumentation, 11(3).
Meng X, Xie S, Zhou X, Calandri N, Sanzaro M, Tosi A, Tan CH & Ng JS (2016) . Royal Society Open Science, 3(3), 150584-150584.
Lioliou G, Meng X, Ng JS & Barnett AM (2016) . Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 813, 1-9.
Qiao L, Cheong JS, Ong JSL, Ng JS, Krysa AB, Green JE & David JPR (2016) . IEEE Photonics Technology Letters, 28(4), 481-484.
Cheong JS, Ng JS, Krysa AB, Ong JSL & David JPR (2015) . Journal of Physics D: Applied Physics, 48(40), 405101-405101.
Zhou X, Meng X, Krysa AB, Willmott JR, Ng JS & Tan CH (2015) . IEEE Sensors Journal, 15(10), 5555-5560.
Barnett AM, Lioliou G & Ng JS (2015) . Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 774, 29-33.
Meng X, Tan CH, Dimler S, David JPR & Ng JS (2014) . Optics Express, 22(19), 22608-22615.
Mohmad AR, Bastiman F, Hunter CJ, Richards RD, Sweeney SJ, Ng JS, David JPR & Majlis BY (2014) . Physica Status Solidi (B) Basic Research, 251(6), 1276-1281.
Cheong JS, Ong J, Ng JS, Krysa A & David JP (2014) . IEEE Journal of Selected Topics in Quantum Electronics, 20(6).
Gomes RB, Tan CH, Meng X, David JPR & Ng JS (2014) . Journal of Instrumentation, 9.
Ong JSL, Ng JS, Krysa AB & David JPR (2014) . JOURNAL OF APPLIED PHYSICS, 115(6).
El-Howayek G, Zhang C, Li Y, Ng JS, David JPR & Hayat MM (2014) . IEEE PHOTONICS JOURNAL, 6(1).
Tan SL, Soong WM, Green JE, Steer MJ, Zhang S, Tan LJJ, Ng JS, Marko IP, Sweeney SJ, Adams AR , Allam J et al (2013) . Applied Physics Letters, 103(10).
Sandall IC, Ng JS, David JPR, Liu H & Tan CH (2013) . Semiconductor Science and Technology, 28(9).
Sandall IC, Ng JS, Xie S, Ker PJ & Tan CH (2013) . Opt Express, 21(7), 8630-8637.
Xie J, Ng JS & Tan CH (2013) . IEEE Photonics Journal, 5(4).
Barnett AM, Lees JE, Bassford DJ & Ng JS (2012) . JOURNAL OF INSTRUMENTATION, 7.
Gomes RB, Tan CH, Lees JE, David JPR & Ng JS (2012) . IEEE Transactions on Electron Devices, 59(4), 1063-1067.
Hunter CJ, Bastiman F, Mohmad AR, Richards R, Ng JS, Sweeney SJ & David JPR (2012) . IEEE Photonics Technology Letters, 24(23), 2191-2194.
Tan SL, Hunter CJ, Zhang S, Tan LJJ, Goh YL, Ng JS, David JPR, Marko IP, Sweeney SJ, Adams AR & Allam J (2012) . Journal of Electronic Materials, 1-9.
Sandall I, Ng JS, David JPR, Tan CH, Wang T & Liu H (2012) . Optics Express, 20(10), 10446-10452.
Mohmad AR, Bastiman F, Hunter CJ, Richards R, Sweeney SJ, Ng JS & David JPR (2012) . Applied Physics Letters, 101(1).
Mohmad AR, Bastiman F, Ng JS, Sweeney SJ & David JPR (2012) . Physica Status Solidi (C) Current Topics in Solid State Physics, 9(2), 259-261.
Barnett AM, Lees JE, Bassford DJ & Ng JS (2012) . Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 673, 10-15.
Mohmad AR, Bastiman F, Hunter CJ, Ng JS, Sweeney SJ & David JPR (2011) . APPL PHYS LETT, 99(4).
Tan SL, Zhang SY, Soong WM, Goh YL, Tan LJJ, Ng JS, David JPR, Marko IP, Adams AR, Sweeney SJ & Allam J (2011) . IEEE ELECTR DEVICE L, 32(7), 919-921.
Tan CH, Gomes RB, David JPR, Barnett AM, Bassford DJ, Lees JE & Ng JS (2011) . IEEE T ELECTRON DEV, 58(6), 1696-1701.
Mohmad AR, Bastiman F, Ng JS, Sweeney SJ & David JPR (2011) . APPL PHYS LETT, 98(12).
Gomes RB, Tan CH, Ker PJ, David JPR & Ng JS (2011) . Journal of Instrumentation, 6(12).
Bastiman F, Mohmad ARB, Ng JS, David JPR & Sweeney SJ (2011) Non-stoichiometric GaAsBi/GaAs (100) molecular beam epitaxy growth. Journal of Crystal Growth.
Lees JE, Barnett AM, Bassford DJ, Ng JS, Tan CH, Babazadeh N, Gomes RB, Vines P, David JPR, McKeag RD & Boe D (2011) . Journal of Instrumentation, 6(12).
Ong JSL, Ng JS, Krysa AB & David JPR (2011) Impact Ionization Coefficients in Al0.52In0.48P. IEEE Electron Device Letters.
Ong JSL, Ng JS, Krysa AB & David JPR (2011) . IEEE Electron Device Letters, 32(11), 1528-1530.
Barnett AM, Lees JE, Bassford DJ, Ng JS, Tan CH, Babazadeh N & Gomes RB (2011) The spectral resolution of high temperature GaAs photon counting soft X-ray photodiodes. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
Ong DSG, Ng JS, Goh YL, Tan CH, Zhang S & David JPR (2011) . IEEE Transactions on Electron Devices, 58(2), 486-489.
Ong DSG, Hayat MM, David JPR & Ng JS (2011) . IEEE Photonics Technology Letters, 23(4), 233-235.
Tan LJJ, Soong WM, David JPR & Ng JS (2011) . IEEE Transactions on Electron Devices, 58(1), 103-106.
Barnett AM, Bassford DJ, Lees JE, Ng JS, Tan CH & David JPR (2010) . NUCL INSTRUM METH A, 621(1-3), 453-455.
Tan LJJ, Ong DSG, Ng JS, Tan CH, Jones SK, Qian YH & David JPR (2010) . IEEE J QUANTUM ELECT, 46(8), 1153-1157.
Barnett AM, Lees JE, Bassford DJ, Ng JS, Tan CH & Gomes RB (2010) Temperature dependence of the avalanche multiplication process and the impact ionization coefficients in Al0.8Ga0.2As. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
Barnett AM, Lees JE, Bassford DJ, Ng JS, Tan CH & Gomez RB (2010) Modelling results of avalanche multiplication in AlGaAs soft X-ray APDs. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
Ong DSG, Ng JS, Hayat MM, Sun P & David JPR (2009) . J LIGHTWAVE TECHNOL, 27(15), 3294-3302.
Mun SCLT, Tan CH, Dimler SJ, Tan LJJ, Ng JS, Goh YL & David JPR (2009) . IEEE J QUANTUM ELECT, 45(5-6), 566-571.
Hasbullah NF, Ng JS, Liu HY, Hopkinson M, David JPR, Badcock TJ & Mowbray DJ (2009) . IEEE J QUANTUM ELECT, 45(1-2), 79-85.
Lees JE, Bassford DJ, Ng JS, Tan CH & David JPR (2008) . NUCL INSTRUM METH A, 594(2), 202-205.
Loh WS, Ng BK, Ng JS, Soloviev SI, Cha HY, Sandvik PM, Johnson CM & David JPR (2008) . IEEE T ELECTRON DEV, 55(8), 1984-1990.
Tan LJJ, Ng JS, Tan CH & David JPR (2008) . IEEE J QUANTUM ELECT, 44(3-4), 378-382.
Buller GS, Warburton RE, Pellegrini S, Ng JS, David JPR, Tan LJJ, Krysa AB & Cova S (2007) . IET OPTOELECTRONICS, 1(6), 249-254.
Tan LJJ, Ng JS, Tan CH, Hopkinson M & David JPR (2007) . IEEE T ELECTRON DEV, 54(8), 2051-2054.
Tan CH, Ng JS, Rees GJ & David JPR (2007) . IEEE J SEL TOP QUANT, 13(4), 906-910.
Dimler SJ, Ng JS, Tozer RC, Rees GJ & David JPR (2007) . IEEE J SEL TOP QUANT, 13(4), 919-925.
Goh YL, Marshall ARJ, Massey DJ, Ng JS, Tan CH, Hopkinson M, David JPR, Jones SK, Button CC & Pinches SM (2007) . IEEE J QUANTUM ELECT, 43(5-6), 503-507.
Ng JS, Soong WM, Steer MJ, Hopkinson M, David JPR, Chamings J, Sweeney SJ & Adams AR (2007) . J APPL PHYS, 101(6).
Ng JS, Tan CH, Rees GJ & David JPR (2007) . J MOD OPTIC, 54(2-3), 353-360.
Goh YL, Massey DJ, Marshall ARJ, Ng JS, Tan CH, Ng WK, Rees GJ, Hopkinson A, David JPR & Jones SK (2007) . IEEE T ELECTRON DEV, 54(1), 11-16.
Ng JS, Liu HY, Steer MJ, Hopkinson M & David JPR (2006) . MICROELECTRONICS JOURNAL, 37(12), 1468-1470.
Pellegrini S, Warburton RE, Tan LJJ, Ng JS, Krysa AB, Groom K, David JPR, Cova S, Robertson MJ & Buller GS (2006) . IEEE J QUANTUM ELECT, 42(3-4), 397-403.
Liu HY, Steer MJ, Badcock TJ, Mowbray DJ, Skolnick MS, Suarez F, Ng JS, Hopkinson M & David JPR (2006) . J APPL PHYS, 99(4).
Goh YL, Ng JS, Tan CH, Ng WK & David JPR (2005) . IEEE PHOTONIC TECH L, 17(11), 2412-2414.
Ng JS, Tan CH, David JPR & Rees GJ (2005) . IEEE J QUANTUM ELECT, 41(8), 1092-1096.
Hogg R, Groom KM, Liu HY, Sellers IR, Ray SK, Badcock T, Gutierrez M, Hopkinson M, Ng JS, R. David JP , Mowbray DJ et al (2004) . Extended Abstracts of the 2004 International Conference on Solid State Devices and Materials.
Liu HY, Sellers IR, Badcock TJ, Mowbray DJ, Skolnick MS, Groom KM, Gutierrez M, Hopkinson M, Ng JS, David JPR & Beanland R (2004) . APPL PHYS LETT, 85(5), 704-706.
Tan CH, Rees GJ, Houston PA, Ng JS, Ng WK & David JPR (2004) . APPL PHYS LETT, 84(13), 2322-2324.
Ng JS, Tan CH & David JPR (2004) . Journal of Modern Optics, 51(9-10), 1315-1321.
Liu HY, Hopkinson M, Navaretti P, Gutierrez M, Ng JS & David JPR (2003) . APPL PHYS LETT, 83(24), 4951-4953.
Ng WK, Tan CH, David JPR, Houston PA, Yee M & Ng JS (2003) . APPL PHYS LETT, 83(14), 2820-2822.
Ng JS, Tan CH, David JPR, Hill G & Rees GJ (2003) . IEEE T ELECTRON DEV, 50(4), 901-905.
Ng JS, Tan CH, David JPR & Rees GJ (2002) A general method for estimating the duration of avalanche multiplication. SEMICOND SCI TECH, 17(10), 1067-1071.
Ng JS, David JPR, Rees GJ & Allam J (2002) . J APPL PHYS, 91(8), 5200-5202.
Ng JS, Tan CH, Ng BK, Hambleton PJ, David JPR, Rees GJ, You AH & Ong DS (2002) Effect of dead space on avalanche speed. IEEE T ELECTRON DEV, 49(4), 544-549.
Asfour R, Khamas SK, Ball EA, Ng JS, Huang G, Allanic R, Le Berre D, Quendo C, Leuliet A & Merlet T () . Sensors, 24(2), 321-321.
Petticrew J, Ji Y, Han IS, White B, Evirgen A, Reverchon J-L, Hopkinson M, Tan CH & Ng JS () . Semiconductor Science and Technology.
Meng X, Zhou X, Zhang S, Lees J, Tan CH & Ng JS () . Journal of Instrumentation, 10(10), P10030-P10030.
Ng JS, Meng X, Lees JE, Barnett A & Tan CH () . Journal of Instrumentation, 9(08), T08005-T08005.
Zhou X, Ng JS & Tan CH () . Journal of Instrumentation, 7(08), P08006-P08006.
Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS () Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors.

Conference proceedings papers

Tan CH, Blain T, Cao Y, Taylor-Mew J, White B, Collins X, Ng JS & David J (2024) . Optical Sensing and Detection VIII, 7 April 2024 - 12 April 2024.
Blain T, Basta G, Tan CH & Ng JS (2024) . Optical Sensing and Detection VIII (pp 69-69), 7 April 2024 - 12 April 2024.
Tan CH, Blain T, Taylor-Mew J, Cao Y, White B, Collins X, Ng JS & David J (2024) . Infrared Technology and Applications L, 21 April 2024 - 26 April 2024.
Allanic R, Le Berre D, Quendo C, Ball EA, Shien Ng J, Huang G, Leuliet A & Merlet T (2023) . 2023 IEEE Conference on Antenna Measurements and Applications (CAMA), 15 November 2023 - 17 November 2023.
Allanic R, Le Berre D, Quendo C, Ball EA, Shien Ng J, Huang G, Leuliet A & Merlet T (2023) . 2023 IEEE Conference on Antenna Measurements and Applications (CAMA), 15 November 2023 - 17 November 2023.
Collins X, Sheridan BS, Price DM, Cao Y, Blain T, Ng JS, Tan CH & White BS (2023) . Optical Components and Materials XX, Vol. 12417 (pp 124170k-124170k), 28 January 2023 - 28 January 2023.
Collins X, White B, Cao Y, Osman T, Taylor-Mew J, Ng JS & Tan CH (2022) . Optical Components and Materials XIX, 22 January 2022 - 28 March 2022.
Ng JS & Tan CH (2018) . 2018 IEEE Photonics Conference (IPC), 30 September 2018 - 4 October 2018.
Pinel LLG, Tan CH & Ng JS (2018) . Optical Sensing, Imaging, and Photon Counting: From X-Rays to THz, 19 August 2018 - 23 August 2018.
Zhang S, Abdullah S, Tan CH & Ng JS (2018) . Optical Sensing, Imaging, and Photon Counting: From X-Rays to THz, 19 August 2018 - 23 August 2018.
Tan CH, Ng JS, Zhou X, David J, Zhang S & Krysa A (2017) . Advanced Photon Counting Techniques XI
Ng JS, Zhou X, Auckloo A, White B, Zhang S, Krysa A, David JPR & Tan CH (2016) . Proceedings of SPIE, Vol. 9988, 26 September 2016 - 27 September 2016.
Zhou X, Xie S, Zhang S, Ng JS & Tan CH (2016) . 2016 Compound Semiconductor Week (CSW) [Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS), 26 June 2016 - 30 June 2016.
Xie S, Zhou X, Zhang S, Ng JS & Tan CH (2016) . 2016 Compound Semiconductor Week (CSW) [Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS), 26 June 2016 - 30 June 2016.
Xie S, Zhou X, Zhang S, Ng JS, Tan CH & IEEE (2016) Temperature dependence of avalanche gain in Al0.85Ga0.15As0.56Sb0.44 APD. 2016 COMPOUND SEMICONDUCTOR WEEK (CSW) INCLUDES 28TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE & RELATED MATERIALS (IPRM) & 43RD INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (ISCS)
Cheong JS, Qiao L, Baharuddin ANAP, Ng JS, Krysa AB & David JPR (2015) Al0.52In0.48P photodetectors for underwater communication systems. Asia Communications and Photonics Conference, ACPC 2015
Cheong JS, Qiao L, Baharuddin ANAP, Ng JS, Krysa AB & David JPR (2015) . Asia Communications and Photonics Conference 2015, 2015.
Zhou X, Ng JS & Tan CH (2015) . Sensors, Systems, and Next-Generation Satellites XIX
Cheong JS, Auckloo A, Ng JS, Krysa AB & David JPR (2015) . Unmanned/Unattended Sensors and Sensor Networks XI; and Advanced Free-Space Optical Communication Techniques and Applications
Cheong JS, Ong JSL, Ng JS, Krysa AB & David JPR (2014) . 2014 IEEE Photonics Conference, 12 October 2014 - 16 October 2014.
Mohmad AR, Majlis BY, Bastiman F, Hunter CJ, Richards RD, Ng JS & David JPR (2014) . 2014 IEEE International Conference on Semiconductor Electronics (ICSE2014), 27 August 2014 - 29 August 2014.
Cheong JS, Ong JSL, Ng JS, Krysa AB, Bastiman F & David JPR (2013) . EMERGING TECHNOLOGIES IN SECURITY AND DEFENCE; AND QUANTUM SECURITY II; AND UNMANNED SENSOR SYSTEMS X, Vol. 8899
Sandall IC, Ng JS, David JP, Tan CH, Wang T & Liu H (2012) . 2012 IEEE Photonics Conference, IPC 2012 (pp 167-168)
Tan SL, Soong WM, Steer MJ, Zhang S, Ng JS & David JPR (2012) . Proceedings of SPIE - The International Society for Optical Engineering, Vol. 8256
Gomes RB, Tan CH, Lees JE, David JPR & Ng JS (2011) . IEEE Nuclear Science Symposium Conference Record (pp 2238-2241)
Ng JS, Vines P, Gomes RB, Babazadeh N, Lees JE, David JPR & Tan CH (2011) . IEEE Nuclear Science Symposium Conference Record (pp 4809-4811)
Lees JE, Barnett AM, Bassford DJ, Ng JS, Tan CH, David JPR, Babazadeh N, Gomes RB, Vines P, McKeag RD & Boe D (2011) . IEEE Nuclear Science Symposium Conference Record (pp 4528-4531)
Gomes RB, Ker PJ, Tan CH, David JPR & Ng JS (2011) . IEEE Nuclear Science Symposium Conference Record (pp 2071-2073)
Ker PJ, Marshall A, Gomes R, David JP, Ng JS & Tan CH (2011) . IEEE Photonic Society 24th Annual Meeting, PHO 2011 (pp 276-277)
Goh YL, Tan SL, Zhang S, Ng JS & David JPR (2010) . 2010 Photonics Global Conference, PGC 2010
Hayat MM, Ong DSG, David JPR & Ng JS (2010) . 2010 23rd Annual Meeting of the IEEE Photonics Society, PHOTINICS 2010 (pp 126-127)
Goh YL, Ong DSG, Zhang S, Ng JS, Tan CH & David JPR (2010) . Conference Proceedings - International Conference on Indium Phosphide and Related Materials (pp 421-424)
Ng JS, Tan SL, Goh YL, Tan CH, David JPR, Allam J, Sweeney SJ & Adams AR (2010) . Conference Proceedings - International Conference on Indium Phosphide and Related Materials (pp 187-190)
Tan SL, Tan LJJ, Goh YL, Zhang S, Ng JS, David JPR, Marko IP, Allam J, Sweeney SJ & Adams AR (2010) . Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7726
Ng JS, Tan CH & David JPR (2010) . Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7681
David JPR, Ng JS, Tan CH & Goh YL (2009) Extended Wavelength Avalanche Photodiodes. 2009 4TH INTERNATIONAL CONFERENCE ON COMPUTERS AND DEVICES FOR COMMUNICATION (CODEC 2009) (pp 454-457)
Tan CH, Ng JS, Xie S & David JPR (2009) Potential Materials for Avalanche Photodiodes Operating above 10Gb/s. 2009 4TH INTERNATIONAL CONFERENCE ON COMPUTERS AND DEVICES FOR COMMUNICATION (CODEC 2009) (pp 442-447)
Ng JS, Tan CH & David JPR (2009) . Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7320
Goh YL, Ong DSG, Zhang S, Ng JS, Tan CH & David JPR (2009) . Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7298
Goh YL, Ong DSG, Zhang S, Ng JS, Tan CH & David JPR (2009) Type-II photodiode and APD for detection in the 2-2.5 mu m wavelength range. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 293-294)
Tan LJJ, Soong WS, Tan SL, Goh YL, Steer MJ, Ng JS, David JPR, Marko IP, Chamings J, Allam J , Sweeney SJ et al (2009) Dark current mechanisms in InxGa1-xAs1-yNy. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 233-234)
Loh WS, David JPR, Soloviev SI, Cha HY, Sandvik PM, Ng JS & Johnson CM (2009) Avalanche Multiplication and Impact Ionisation in Separate Absorption and Multiplication 4H-SiC Avalanche Photodiodes. SILICON CARBIDE AND RELATED MATERIALS 2007, PTS 1 AND 2, Vol. 600-603 (pp 1207-1210)
Loh WS, David JPR, Ng BK, Soloviev SI, Sandvik PM, Ng JS & Johnson CM (2009) Temperature Dependence of Hole Impact Ionization Coefficient in 4H-SiC Photodiodes. SILICON CARBIDE AND RELATED MATERIALS 2008, Vol. 615-617 (pp 311-314)
Ong DSG, Ng JS, David JPR, Hayat MM & Sun P (2008) OPTIMIZATION OF InP APDs FOR HIGH-SPEED LIGHTWAVE SYSTEMS. 2008 IEEE 20TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS (IPRM) (pp 319-322)
Soong WM, Ng JS, Steer MJ, Hopkinson M, David JPR, Chamings J, Sweeney SJ, Adams AR & Allam J (2008) DARK CURRENT MECHANISMS IN BULK GaInNAs PHOTODIODES. 2008 IEEE 20TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS (IPRM) (pp 345-348)
Hasbullah NF, Ng JS, Liu HY, Hopkinson M, David JPR, Badcock TJ, Mowbray DJ, Sanchez AM & Beanland R (2008) Effects of spacer growth temperature on the optical properties of quantum dot laser structures - art. no. 68000U. DEVICE AND PROCESS TECHNOLOGIES FOR MICROELECTRONICS, MEMS, PHOTONICS AND NANOTECHNOLOGY IV, Vol. 6800 (pp U8000-U8000)
Hopkins J-M, Preston RD, Maclean AJ, Calvez S, Sun H, NG J, Steer M, Hopkinson M & Burns D (2007) . Journal of Modern Optics, Vol. 54(12) (pp 1677-1683)
Tan LJJ, Ng JS, Tan CH & David JPR (2007) Impact ionization of sub-micron InP structures. 2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 515-516)
Ng JS, Tan LJJ, Ong ASG, Tan CH & David JPR (2007) Temperature dependence of breakdown voltage of InP and InAlAs avalanche photodiodes. 2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 513-514)
Marshall ARJ, Tan CH, David JPR, Ng JS & Hopkinson M (2007) Fabrication of InAs Photodiodes with reduced surface leakage current - art. no. 67400H. OPTICAL MATERIALS IN DEFENCE SYSTEMS TECHNOLOGY IV, Vol. 6740 (pp H7400-H7400)
Ng JS, Soong WM, Steer MJ, Hopkinson M, David JPR, ChamingS J, Adams AR, Sweeney SJ & Aiiam J (2007) Gainnas lattice-matched to GaAs for photodiodes. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 347-349)
Loh WS, Johnson CM, Ng JS, Sandvik PM, Arthur SD, Soloviev SI & David JPR (2007) Determination of impact ionization coefficients measured from 4H-silicon carbide avalanche photodiodes. Silicon Carbide and Related Materials 2006, Vol. 556-557 (pp 339-342)
Goh YL, Ng JS, Tan CH, David JPR, Sidhu R, Holmes AL & Campbell JC (2007) InP-based avalanche photodiodes with > 2.1 mu m detection capability. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 293-295)
Ong DSG, Ng JS, Tan LJJ, Tan CH & David JPR (2007) Temperature dependence of inp-based avalanche photodiodes. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 296-298)
Tan CH, Goh YL, Marshall ARJ, Tan LJJ, Ng JS & David JPR (2007) Extremely low excess noise InAlAs avalanche photodiodes. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 81-83)
Ng JS, Tan CH & David JPR (2006) . IEE P-OPTOELECTRON, Vol. 153(4) (pp 191-194)
Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS (2006) Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors. Optics InfoBase Conference Papers
Goh YL, Massey DJ, Marshall ARJ, Ng JS, Tan CH, Hopkinson M & David JPR (2006) Excess noise and avalanche multiplication in InAlAs. 2006 IEEE LEOS Annual Meeting Conference Proceedings, Vols 1 and 2 (pp 787-788)
Marshall ARJ, Goh YL, Tan LJJ, Tan CH, Ng JS & David JPR (2006) A comparison of the lower limit of multiplication noise in InP and InAlAs based APDs for telecommunications receiver applications. 2006 IEEE LEOS Annual Meeting Conference Proceedings, Vols 1 and 2 (pp 789-790)
Gutierrez M, Hopkinson M, Liu HY, Ng JS, Herrera M, Gonzalez D, Garcia R & Beanland R (2005) . PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 245-251)
Goh YL, Tan CH, Ng JS, Ng WK & David JPR (2005) Avalanche noise in In0.53Ga0.44As avalanching regions. 2005 International Conference on Indium Phosphide and Related Materials (pp 428-431)
Sun HD, Clark AH, Calvez S, Dawson MD, Liu HY, Hopkinson M, Navaretti P, Gutierrez M, Ng JS, David JPR , Gilet P et al (2004) . IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 151(5) (pp 331-334)
Ng JS, Tan CH & David JPR (2004) . JOURNAL OF MODERN OPTICS, Vol. 51(9-10) (pp 1315-1321)
Ng BK, David JPR, Soong WM, Ng JS, Tan CH, Liu HY, Hopkinson M & Robson PN (2004) . Device Research Conference - Conference Digest, DRC (pp 79-80)
Liu HY, Sun HD, Navaretti P, Ng JS, Hopkinson M, Clark AH & Dawson MD (2004) 1.55-mu m GaInNAs/GaAs multiple quantum wells with GaInNAs quaternary barrier and space layer. SMIC-XIII: 2004 13th International Conference on Semiconducting & Insulating Materials (pp 189-193)
Ng JS, Yee MC, David JPR, Houston PA, Rees GJ & Hill G (2003) In0.53Ga0.47As ionization coefficients deduced from photomultiplication measurements. COMPOUND SEMICONDUCTORS 2002, Vol. 174 (pp 267-270)
Ng JS, Tan CH, David JAR & Rees GJ (2003) Theoretical study of breakdown probabilities in single photon avalanche diodes. 2003 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 (pp 773-774)
Ng JS, David JPR, Rees GJ, Pinches SM & Hill G (2001) . IEE P-OPTOELECTRON, Vol. 148(5-6) (pp 225-228)
Ng BK, Ng JS, Hambleton PJ, David JPR, Ong DS, Rees GJ & Tozer RC (2001) Design considerations for high-speed low-noise avalanche photodiodes. DESIGN, FABRICATION, AND CHARACTERIZATION OF PHOTONIC DEVICES II, Vol. 4594 (pp 1-9)
Plimmer SA, Hambleton PJ, Ng BK, Dunn GM, Ng JS, David JPR & Rees GJ (2001) How avalanche pulses evolve in space and time. PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES IX, Vol. 4283 (pp 511-518)
Loh WS, Johnson CM, Ng JS, Sandvik P, Arthur S, Soloviev S & David JPR () (pp 339-342)

Software / Code

Petticrew J, Dimler S & Ng J .
Petticrew J, Dimler S, Tan C & Ng J .

Datasets

Petticrew J, Dimler S, Tan C & Ng J .
Tan C, Velychko A, Lim L & Ng J .
Abdullah S, Tan C, Ng J, Zhou X, Zhang S & Guerrero MM .
Zhou X, Pinel L, Dimler S, Zhang S, Ng J & Tan C .

Other

Sandall IC, Ng JS, Xie S, Ker PJ & Tan CH (2014) Temperature dependence of impact ionization in InAs: erratum.. Opt Express, 22(21), 25923.
Sandall IC, Ng JS, Xie S, Ker PJ & Tan CH (2014) . Optics Express, 22(21), 25923-25923.

Preprints

Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS (2006) Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors, arXiv.
Pellegrini S, Warburton RE, Tan LJJ, Ng JS, Krysa AB, Groom K, David JPR, Cova S, Robertson MJ & Buller GS (2006) Design and Performance of an InGaAs-InP Single-Photon Avalanche Diode Detector, arXiv.

Grants

Dates	Sponsor	Grant Title	PI/co-I
Jul 15 - Apr 16	Commercial	AIInP detectors	PI
Jul 15 - Jun 16	Commercial	Avalanche photodiodes	Co-I
Jul 15 - Jun 18	STFC	Linear geiger mode detector technology for time resolved spectral measurements	PI
Mar 15 - Feb 17	Royal Society	High-performance photodetectors for mid-infrared light detection	PI
Jan 15 - Jun 18	EU H2020	PROMIS (Postgraduate Research on Dilute Metamorphic Nanostructures and Metamaterials in Semiconductor Photonics)	Co-I
Jan 15 - Jun 15	European Space Agency	InAs APD development for NIR & SWIR applications (Extension)	PI
Apr 13 - Oct 16	EPSRC	Next generation avalanche photodiodes	Co-I
Apr 13 - Mar 16	Royal Society	Royal Society University Research Fellowship	PI
Sept 12 - Aug 15	EPSRC	InAsNSb dilute nitride materials for mid-infrared devices and applications.	Co-I
Jun 14 - Oct 14	Commercial	InGaAs/InAIAs APDs	PI
Jan 13 - Dec 14	European Space Agency	InAs APD development for NIR & SWIR applications	Co-I
Dec 12 - Jun 13	Commercial	InGaAs/InAIAs APDs	PI
Apr 12 - Sept 12	MoD CDE	Narrow band APDs for underwater communications	Co-I
Mar 11 - Feb 13	EPSRC	High performance X-ray detectors with sub-100eV energy resolution	PI
Oct 10 - Sept 13	EPSRC	Novel InAS avalanche photodiodes for photon counting applications	Co-I
Dec 09 - Nov 12	STFC (PIPSS)	Knowledge exchange in AIGaAs X-ray detectors	PI
Apr 09 - Apr 10	EMRS DTC	Detector for infrared Algorithmic Spectrometer	Co-I
Oct 08 - Sept 11	TSB	Extended Tempertaure OptoElectronics II (ETOE II)	Co-I
May 08 - Jul 11	EU FP7	Materials for avalanche receiver for ultimate sensitivity (MARISE)	PI
May 08 - Jul 10	EPSRC	New high-performance avalanche photodiodes based on the unique properties of dilute nitrides.	Co-I
Nov 07 - Oct 08	MoD Col	Detectors for UV non line-of-sight communication	Co-I
Nov 07 - Oct 08	MoD Col	2 Band Quantum Dot Infrared Photodiodes for Mid and Long Wave Infrared Scene Sensing	Co-I
Oct 07 - Sept 09	DSTL & STFC	Avalanche photodiode array detector for eye-safe 3D imaging	PI
Apr 07 - Mar 10	EMRS DTC	Infrared photodiodes based on Type-II Superlattices	Co-I
Oct 06 - Mar 13	Royal Society	Royal Society University Research Fellowship	PI
May 06 - Sept 09	European Space Agency	Near infrared detectors for LIDAR	Co-I
Apr 06 - Mar 09	EMRS DTC		Co-I
Oct 05 - Dec 05	EMRS DTC	Novel low voltage InAs avalanche photodiodes for affordable 2D IR detectors.	Co-I
Apr 04 - Aprt 06	EU FP6	Secure Communications based on Quantum Cryptography	Co-I
Apr 03 - Mar 05	EMRS DTC	High sensitivity avalanche photodiodes for imaging and rangefinding	Co-I

Teaching activities

EEE123 (Introduction to Electric and Electronic Circuits)
AER11003 (Aerospace Electrics and Drives)

Professional activities and memberships

Departmental Director of Research & Innovation
EEE Women Adviser
EEE Athena SWAN team member

Research students

Student	Degree	Status	Primary/Secondary
Goldberg G R	MPhil	Graduated	Primary
Meng X	PhD	Graduated	Primary
Mohmad A R B	PhD	Graduated	Primary
Ong D S G	PhD	Graduated	Primary
Ong S-L	PhD	Graduated	Primary
Dimler S J	PhD	Graduated	Secondary
Guerrero Moreno M A	MPhil	Graduated	Secondary

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School of Electrical and Electronic Engineering

School of Electrical and Electronic Engineering

Professor Jo Shien Ng

Journal articles

Conference proceedings papers

Software / Code

Datasets

Other

Preprints

Links