TY - CONF T1 - Ultrafast Probing of the Complex Refractive Index in an Active Mid Infrared Quantum Cascade Laser JO - 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 PY - 2008/01/01 AU - Parz W AU - Muller T AU - Austerer M AU - Strasser G AU - Unterrainer K AU - Wilson LR AU - Cockburn JW AU - Krysa AB AU - Roberts JS ED - SP - 1764 EP - 1765 Y2 - 2024/12/23 ER -