Blue laser diodes and LEDs based on II-VI semiconductor heterostructures

1992 ◽  
Vol 39 (11) ◽  
pp. 2653 ◽  
Author(s):  
Z. Yu ◽  
J. Ren ◽  
B. Sneed ◽  
K. Bowers ◽  
J.W. Cook ◽  
...  
1992 ◽  
Vol 281 ◽  
Author(s):  
Z. Yu ◽  
J. Ren ◽  
Y. Lansari ◽  
K. J. Gossett ◽  
B. Sneed ◽  
...  

ABSTRACTProperties of blue laser diodes based on ZnSe-related II-VI semiconductor heterostructures are reported. At 77 K, continuous-wave (cw) operation has been achieved for lasers emitting at wavelengths as short as 470.4 nm (2.635 eV), while pulsed laser emission has been observed up to ∼200 K, for samples with uncoated facets. Measured turn-on voltages for stimulated emission at 77 K were as low as 12 V for some of the laser diodes due to improved ohmic contacts. For some particular devices, differential quantum efficiencies as high as 36% per (uncoated) facet have been obtained at 77 K.


1992 ◽  
Author(s):  
Z. Yu ◽  
J. Ren ◽  
B. Sneed ◽  
K. Bowers ◽  
J.W. Cook ◽  
...  

1998 ◽  
Author(s):  
Amber C. Abare ◽  
Michael P. Mack ◽  
Mark W. Hansen ◽  
R. K. Sink ◽  
Peter Kozodoy ◽  
...  
Keyword(s):  

2000 ◽  
Vol 5 (S1) ◽  
pp. 1-7 ◽  
Author(s):  
Masayoshi Koike ◽  
Shiro Yamasaki ◽  
Yuta Tezen ◽  
Seiji Nagai ◽  
Sho Iwayama ◽  
...  

GaN-based short wavelength laser diodes are the most promising key device for a digital versatile disk. We have been improving the important points of the laser diodes in terms of optical guiding layers, mirror facets. The continuous wave laser irradiation at room temperature could be achieved successfully by reducing the threshold current to 60 mA (4 kA/cm2). We have tried to apply the multi low temperature buffer layers to the laser diodes for the first time to reduce the crystal defects.


2003 ◽  
Vol 42 (Part 1, No. 8) ◽  
pp. 5059-5062 ◽  
Author(s):  
Kaduki Komori ◽  
Yosuke Takasu ◽  
Mitsutaka Kumakura ◽  
Yoshiro Takahashi ◽  
Tsutomu Yabuzaki

2019 ◽  
Vol 449 ◽  
pp. 79-85
Author(s):  
M.H.M. Shamim ◽  
M.A. Shemis ◽  
C. Shen ◽  
H.M. Oubei ◽  
O. Alkhazragi ◽  
...  

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