Quantitative evaluation of enhanced Er luminescence in GaAs-based two-dimensional photonic crystal nanocavities
Quantitative evaluation of enhanced Er luminescence in GaAs-based two-dimensional photonic crystal nanocavities
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DOI：
10.1063/1.5142778
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发表时间：
2020-05
影响因子：
4
通讯作者：
M. Ogawa;J. Tatebayashi;N. Fujioka;R. Higashi;M. Fujita;S. Noda;D. Timmerman;S. Ichikawa;Y. Fujiwara
中科院分区：
文献类型：
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作者：
M. Ogawa;J. Tatebayashi;N. Fujioka;R. Higashi;M. Fujita;S. Noda;D. Timmerman;S. Ichikawa;Y. Fujiwara
我们通过光致发光测量和数值模拟的方法评估了二维光子晶体(PC)纳米腔对Er发光的增强作用。以低压有机金属气相外延生长的GaAs：Er，O为有源层，利用L3PC纳米空穴进行了表征和评价。室温下的光学表征表明，由于耦合到2D-PC纳米腔的腔模，Er的发光增强了5.8倍。这种Er发光的增强得到了有限差分时间域模拟的支持，其中Er的发光增强了4.1倍，这与观察到的实验结果是合理一致的。这些结果为理解PC纳米腔中的腔模与稀土发光之间的相互作用铺平了道路。
We evaluate the enhancement of Er luminescence coupled to two-dimensional (2D) photonic crystal (PC) nanocavities by means of photoluminescence measurements and numerical simulations. L3 PC nanocavities are utilized for characterization and evaluation, with GaAs:Er,O grown by low-pressure organometallic vapor phase epitaxy as the active layer. Optical characterization at room temperature demonstrates a 5.8-fold enhancement of Er luminescence due to coupling to the cavity mode of the 2D-PC nanocavities. This enhancement of Er luminescence is supported by a finite-difference time domain simulation where an enhancement of 4.1 times is found, which is in reasonable agreement with the observed experimental results. These results pave the way toward understanding the interaction between cavity modes in PC nanocavities and luminescence from rare-earth elements.