Browsing by Author "Lo, Sheng-Yun"

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High quality factor nonpolar GaN photonic crystal nanocavities
(2013-05-13)
Wu, Tzeng-Tsong
;
Lo, Sheng-Yun
;
Huang, Huei-Min
;
Tsao, Che-Wei
;
Lu, Tien-Chang
High quality factor a-plane nonpolar GaN two-dimensional photonic crystal (PC) nanocavities on r-plane sapphire substrates have been demonstrated. Nonpolar GaN PC nanocavities on a thin membrane structure were realized by using e-beam lithography to define the PC patterns and focused-ion beam milling to fabricate the suspended thin membrane. A dominant resonant mode at 388 nm with a high quality factor of approximately 4300 has been demonstrated at 77K by the micro-photoluminescence system. Moreover, the degree of polarization of the emission from the non-polar GaN PC nanocavity was measured to be 64% along the m crystalline direction. (C) 2013 AIP Publishing LLC.
NONPOLAR GAN TWO DIMENSIONAL PHOTONIC CRYSTAL H2 HIGH QUALITY FACTOR NANOCAVITIES
(2013-01-01)
Lu, Tien-Chang
;
Wu, Tzeng-Tsong
;
Lo, Sheng-Yun
;
Tsao, Che-Wei
;
Huang, Huei-Min
Nonpolar GaN two-dimensional photonic crystal (PC) H2 nanocavities have been realized and investigated. One dominated resonant mode was demonstrated at 388 nm with quality factor of approximately 4300 at 77K. Moreover, the degree of polarization of the emission from the non-polar GaN PC nanocavity was measured to be 64% along the m crystalline direction.