Title :
PQR laser can outdo LED
Author :
Kim, Y.C. ; Jung, T.S. ; Lee, Y.J. ; Yoon, J.H. ; Kim, D.K. ; Lee, S.E. ; Kwon, H.S. ; Kim, S.S. ; Kwon, H.S.
Author_Institution :
Pohang Univ. of Sci. & Technol., Pohang
Abstract :
The PQR laser with ultra-low threshold current and sharp discrete multi-mode properties outdo conventional LEDs. We have fabricated 16times16 mesa type red PQR laser arrays at lambda = 610 nm and confirmed the superiority in luminous efficiency of PQR arrays to the conventional LEDs. We also present blue PQR laser arrays from GaN structures, which are very promising for display applications as well as low power high efficiency solid state lighting.
Keywords :
laser arrays; light emitting diodes; GaN structures; LED; blue PQR laser arrays; photonic quantum ring; red PQR laser arrays; sharp discrete multimode properties; size 610 nm; ultralow threshold current; Laser modes; Laser theory; Light emitting diodes; Optical arrays; Power lasers; Ring lasers; Semiconductor laser arrays; Surface emitting lasers; Threshold current; Vertical cavity surface emitting lasers;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0541-1
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388717
