On The Effect The Effect of Electron-Hole Recombination in Disordered GaAs-Aa1-xALAs Multi-quantum Well Structure

2012 ◽  
Vol 2 (4) ◽  
pp. 52-54 ◽  
Author(s):  
Uno E. Uno ◽  
Author(s):  
Shuji Nakamura

The continuous-wave (CW) operation of InGaN multi-quantum-well-structure laser diodes (LDs) was demonstrated at room temperature (RT) with a lifetime of 35 hours. The threshold current and the voltage of the LDs were 80 mA and 5.5 V, respectively. The threshold current density was 3.6 kA/cm2. When the temperature of the LDs was varied, large mode hopping of the emission wavelength was observed. The carrier lifetime and the threshold carrier density were estimated to be 2-10 ns and 1-2 × 1020/cm3, respectively. From the measurements of gain spectra and an external differential quantum efficiency dependence on the cavity length, the differential gain coefficient, the transparent carrier density, threshold gain and internal loss were estimated to be 5.8×10−17 cm2, 9.3×1019 cm−3, 5200 cm−1 and 43 cm−1, respectively.


2009 ◽  
Vol 42 (14) ◽  
pp. 145109 ◽  
Author(s):  
W H M Feu ◽  
J M Villas-Bôas ◽  
L A Cury ◽  
P S S Guimarães ◽  
G S Vieira ◽  
...  

1996 ◽  
Vol 69 (11) ◽  
pp. 1568-1570 ◽  
Author(s):  
Shuji Nakamura ◽  
Masayuki Senoh ◽  
Shin‐ichi Nagahama ◽  
Naruhito Iwasa ◽  
Takao Yamada ◽  
...  

1997 ◽  
Vol 36 (Part 2, No. 8B) ◽  
pp. L1059-L1061 ◽  
Author(s):  
Shuji Nakamura ◽  
Masayuki Senoh ◽  
Shin-ichi Nagahama ◽  
Naruhito Iwasa ◽  
Takao Yamada ◽  
...  

1996 ◽  
Vol 35 (Part 2, No. 2B) ◽  
pp. L217-L220 ◽  
Author(s):  
Shuji Nakamura ◽  
Masayuki Senoh ◽  
Shin-ichi Nagahama ◽  
Naruhito Iwasa ◽  
Takao Yamada ◽  
...  

1987 ◽  
Vol 26 (Part 1, No. 9) ◽  
pp. 1442-1446 ◽  
Author(s):  
Tadaki Miyoshi ◽  
Yoshinobu Aoyagi ◽  
Yusaburo Segawa ◽  
Susumu Namba ◽  
Naokatsu Sano

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