Title :
Study of optical anisotropy of c-plane/m-plane ultra-violet LED and Laser diode by k·p method
Author :
Wang, Chang-Pei ; Wu, Yuh-Renn
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The optical anisotropic characteristics of AlGaN based quantum well UV LED are studied in this paper by k·p method. A polarization switch is observed when Al composition is larger than 50% for the c-plane case. And for the non-polar structure, the light polarization direction is mainly dominated by X´ polarized light, which is good for LED or Laser applications.
Keywords :
III-V semiconductors; aluminium compounds; gallium compounds; k.p calculations; light emitting diodes; light polarisation; quantum well lasers; ultraviolet sources; AlGaN; c-plane; k·p method; laser diode; light polarization direction; m-plane; optical anisotropy; polarization switch; quantum well UV LED; ultraviolet LED; Aluminum gallium nitride; Biomedical optical imaging; Light emitting diodes; Optical polarization; Optical switches; Periodic structures; Strain;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
