IV–VI compound midinfrared high-reflectivity mirrors and vertical-cavity surface-emitting lasers grown by molecular-beam epitaxy
IV–VI compound midinfrared high-reflectivity mirrors and vertical-cavity surface-emitting lasers grown by molecular-beam epitaxy
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DOI：
10.1063/1.126750
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发表时间：
2000-06
影响因子：
4
通讯作者：
Zhisheng Shi;G. Xu;P. McCann;X. Fang;N. Dai;C. L. Felix;W. Bewley;I. Vurgaftman;J. Meyer
中科院分区：
文献类型：
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作者：
Zhisheng Shi;G. Xu;P. McCann;X. Fang;N. Dai;C. L. Felix;W. Bewley;I. Vurgaftman;J. Meyer
通过分子束外延生长了中红外宽带高反射率Pb1−xSrxSe/BaF2分布布拉格反射器和以PbSe为活性材料的垂直腔表面发射激光器（VCSEL）。由于折射率对比度极高，仅具有三个四分之一波长层对的反射镜的反射率就超过 99%。对于脉冲光泵浦，铅盐 VCSEL 的发射腔波长为 4.5–4.6 μm，工作温度接近室温 (289 K)。
Midinfrared broadband high-reflectivity Pb1−xSrxSe/BaF2 distributed Bragg reflectors and vertical-cavity surface-emitting lasers (VCSELs) with PbSe as the active material were grown by molecular-beam epitaxy. Because of an extremely high index contrast, mirrors with only three quarter-wave layer pairs had reflectivities exceeding 99%. For pulsed optical pumping, a lead salt VCSEL emitting at the cavity wavelength of 4.5–4.6 μm operated nearly to room temperature (289 K).