Title :
Low-Threshold Ultrafast Surface-Passivated Photonic Crystal Nanocavity Lasers
Author :
Englund, Dirk ; Fushman, Ilya ; Vuckovic, Jelena ; Altug, Hatice
Author_Institution :
Stanford Univ., Stanford
Abstract :
Efficiency and speed of photonic crystal lasers are improved by passivating InGaAs/GaAs membranes using (NH4)S treatment. Lasers show five-fold reduction in nonradiative surface recombination rate, resulting in four-fold reduction in threshold and room-temperature operation with near THz response.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; microcavity lasers; passivation; photonic crystals; semiconductor lasers; surface recombination; InGaAs-GaAs; low-threshold ultrafast surface-passivated photonic crystal nanocavity lasers; nonradiative surface recombination rate; photonic crystal lasers; Equations; Gallium arsenide; Laser modes; Passivation; Photonic crystals; Pulse measurements; Radiative recombination; Surface contamination; Surface emitting lasers; Surface treatment;
Conference_Titel :
Lasers and Electro-Optics Society, 2007. LEOS 2007. The 20th Annual Meeting of the IEEE
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-0925-9
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2007.4382306