Gates & Cooper LLP
Enhancement of optical polarization of nitride light-emitting diodes by wafer off-axis cut
An off-axis cut of a nonpolar III-nitride wafer towards a polar (−c) orientation results in higher polarization ratios for light emission than wafers without such off-axis cuts. A 5° angle for an off-axis cut has been confirmed to provide the highest polarization ratio (0.9) than any other examined angles for off-axis cuts between 0° and 27°.
The Regents of the University of California
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inventional inventional
James S. Kenji Hisashi Shuji Steven P. Asako Makoto Hisashi
Speck Iso Yamada Nakamura DenBaars Hirai Saito Masui