Title :
Sub-250nm room temperature optical gain from AlGaN/AlN multiple quantum wells structures
Author :
Pecora, Emanuele Francesco ; Zhang, Wei ; Zhou, Lin ; Smith, David J. ; Yin, Jian ; Paiella, Roberto ; Dal Negro, Luca ; Moustakas, Theodore D.
Author_Institution :
Dept. of Electr. & Comput. Eng. & Photonics Center, Boston Univ., Boston, MA, USA
Abstract :
We demonstrate room temperature, low threshold, deep-UV, TE polarized optical gain of 118 ± 9 cm-1 at a pumping fluence of 15 μJ/cm2 in AlGaN/AlN structures grown by Molecular Beam Epitaxy.
Keywords :
III-V semiconductors; aluminium compounds; gallium compounds; molecular beam epitaxial growth; optical materials; quantum well lasers; semiconductor growth; semiconductor quantum wells; wide band gap semiconductors; AlGaN-AlN; molecular beam epitaxy; multiple quantum wells structures; optical gain; pumping fluence; room temperature; temperature 293 K to 298 K; Aluminum gallium nitride; Biomedical optical imaging; Optical polarization; Optical pumping; Optical saturation; Plasma temperature; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
