Title :
Bandgap enhanced random laser
Author :
Shihhui Chang ; SengTiong Ho ; Ling, Y. ; Hui Cao ; Seeling ; Liu, X. ; Chang, R.P.H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA
Abstract :
Summary form only given. A laser made of such disordered medium is called a random laser. This is in contrast to commercially available compound semiconductor lasers made of single crystalline films. Recently we observed random laser action with coherent feedback in ZnO powder and polycrystalline films. This opens the possibility of utilizing disordered semiconductor microstructures as alternative sources of coherent light emission.
Keywords :
II-VI semiconductors; laser feedback; microcavity lasers; photonic band gap; powders; semiconductor lasers; zinc compounds; ZnO; ZnO powder; bandgap enhanced random laser; coherent feedback; coherent light emission; disordered medium; disordered semiconductor microstructures; polycrystalline films; random laser; random laser action; Feedback lasers; Powders; Semiconductor lasers; Zinc compounds;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-708-3
DOI :
10.1109/QELS.2002.1031003
