Propagation of Spontaneous Emission in Birefringent $m$-Axis Oriented Semipolar ($11\bar{2}2$) (Al,In,Ga)N Waveguide Structures

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概要

• 論文の詳細を見る

• We report on the observation of rotation of spontaneous emission polarization resulting in polarization tilted with respect to transverse electric (TE) mode, in $m$-axis oriented semipolar ($11\bar{2}2$) (Al,In,Ga)N waveguide structures. The principle polarizations were aligned parallel and perpendicular to the $c$-axis, i.e., at an angle of ${\sim}30$ and ${\sim}120$°, respectively, with respect to TE mode. This phenomenon was attributed to birefringence of uniaxial GaN wurtzite structure. This birefringence property is an important consequence for $m$-axis oriented ($11\bar{2}2$) laser diode structures, since it is expected to reduce the optical gain by a factor of ${\sim}0.5--0.75$.

• 2010-01-25

著者

• Hardy Matthew

  Materials Department University Of California

• Tyagi Anurag

  Electrical And Computer Engineering And Materials Departments University Of California

• Lin You-da

  Electrical And Computer Engineering And Materials Departments University Of California

• HUANG Chia-Yen

  Materials Department, University of California

• DENBAARS Steven

  Materials Department and Electrical Engineering Department, University of California

• Hsu Po

  Materials Department University Of California

• Ohta Hiroaki

  Materials Department University Of California

• Nakamura Shuji

  Materials Department University Of Cahfornia

• Speck James

  Materials Department and Electrical and Computer Engineering Department, University of California, Santa Barbara, CA 93106, U.S.A.

• Huang Chia-Yen

  Materials Department, University of California, Santa Barbara, CA 93106, U.S.A.

• Fujito Kenji

  Optoelectronic Laboratory, Mitsubishi Chemical Corporation, 1000 Higashi-Mamiana, Ushiku, Ibaraki 300-1295, Japan

• Ha Jun-Seok

  Materials Department, University of California, Santa Barbara, CA 93106, U.S.A.

• Hardy Matthew

  Materials Department, University of California, Santa Barbara, CA 93106, U.S.A.

• DenBaars Steven

  Materials Department and Electrical and Computer Engineering Department, University of California, Santa Barbara, CA 93106, U.S.A.

• Hsu Po

  Materials Department, University of California, Santa Barbara, CA 93106, U.S.A.

• Speck James

  Materials and Electrical Engineering Departments, University of California, Santa Barbara, CA 93106, U.S.A.

• FUJITO Kenji

  Optoelectronic Laboratory, Mitsubishi Chemical Corporation

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