Lee Seung-Min, Gong Su-Hyun, Kang Jin-Ho, Ebaid Mohamed, Ryu Sang-Wan, Cho Yong-Hoon
Opt Express. 2015 May 4;23(9):11023-30. doi: 10.1364/OE.23.011023.
Laser operation of a GaN vertical cavity surface emitting laser (VCSEL) is demonstrated under optical pumping with a nanoporous distributed Bragg reflector (DBR). High reflectivity, approaching 100%, is obtained due to the high index-contrast of the nanoporous DBR. The VCSEL system exhibits low threshold power density due to the formation of high Q-factor cavity, which shows the potential of nanoporous medium for optical devices.
在采用纳米多孔分布式布拉格反射器（DBR）进行光泵浦的条件下，实现了氮化镓垂直腔面发射激光器（VCSEL）的激光运转。由于纳米多孔DBR具有高折射率对比度，因此可获得接近100%的高反射率。由于形成了高品质因数腔，VCSEL系统表现出低阈值功率密度，这显示了纳米多孔介质在光电器件方面的潜力。
