Approach to Single-Mode Dominated Resonant Emission in GaN-Based Square Microdisks on Si
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Meng-Han Liu,
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Peng Chen,
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Zi-Li Xie,
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Xiang-Qian Xiu,
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Dun-Jun Chen,
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Bin Liu,
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Ping Han,
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Yi Shi,
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Rong Zhang,
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You-Dou Zheng,
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Kai Cheng,
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Li-Yang Zhang
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Abstract
Square microdisks with round corners are fabricated using a standard GaN-based blue LED on Si substrates. Whispering gallery-like modes in the square microdisks are investigated by finite-difference time-domain simulation. The simulation results reveal that the round corners in square microdisks can substantially suppress the number of light propagation paths and further reduce the number of optical modes. A confocal micro-photoluminescence is performed to analyze the optical properties of the square microdisks at room temperature. The single-mode dominant resonant emission is obtained in the square microdisk with corner radius of 1.5 μm.
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Cite this article:
Meng-Han Liu, Peng Chen, Zi-Li Xie, Xiang-Qian Xiu, Dun-Jun Chen, Bin Liu, Ping Han, Yi Shi, Rong Zhang, You-Dou Zheng, Kai Cheng, Li-Yang Zhang. Approach to Single-Mode Dominated Resonant Emission in GaN-Based Square Microdisks on Si[J].
Chin. Phys. Lett., 2020, 37(5): 054204.
DOI: 10.1088/0256-307X/37/5/054204
Meng-Han Liu, Peng Chen, Zi-Li Xie, Xiang-Qian Xiu, Dun-Jun Chen, Bin Liu, Ping Han, Yi Shi, Rong Zhang, You-Dou Zheng, Kai Cheng, Li-Yang Zhang. Approach to Single-Mode Dominated Resonant Emission in GaN-Based Square Microdisks on Si[J]. Chin. Phys. Lett., 2020, 37(5): 054204. DOI: 10.1088/0256-307X/37/5/054204
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Meng-Han Liu, Peng Chen, Zi-Li Xie, Xiang-Qian Xiu, Dun-Jun Chen, Bin Liu, Ping Han, Yi Shi, Rong Zhang, You-Dou Zheng, Kai Cheng, Li-Yang Zhang. Approach to Single-Mode Dominated Resonant Emission in GaN-Based Square Microdisks on Si[J]. Chin. Phys. Lett., 2020, 37(5): 054204. DOI: 10.1088/0256-307X/37/5/054204
Meng-Han Liu, Peng Chen, Zi-Li Xie, Xiang-Qian Xiu, Dun-Jun Chen, Bin Liu, Ping Han, Yi Shi, Rong Zhang, You-Dou Zheng, Kai Cheng, Li-Yang Zhang. Approach to Single-Mode Dominated Resonant Emission in GaN-Based Square Microdisks on Si[J]. Chin. Phys. Lett., 2020, 37(5): 054204. DOI: 10.1088/0256-307X/37/5/054204
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