Refractive indices of wurtzite and zincblende GaN
Refractive indices of wurtzite and zincblende GaN
复制标题
纤锌矿和闪锌矿 GaN 的折射率
DOI:
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发表时间:
1993
期刊:
影响因子:
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通讯作者:
A. Drakin
中科院分区:
文献类型:
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作者:
M. Lin;B. Sverdlov;S. Strite;H. Morkoç;A. Drakin
Refractive index measurements on both wurtzite and zincblende CaN films grown by plasma-enhanced molecular beam epitaxy are reported. For birefringent uniaxial wurtzite GaN samples the index of refraction was measured along the c crystalline axis. In this direction the index is 2.78 at 3.4eV. For cubic GaN films grown on GaAs substrates, the refractive index is 2.91 at 3.2eV. Estimation of the confinement factor for optimised waveguides based a combination of III–V nitrides indicates very favourable values for laser operation.