Resonance spectrum of a three-dimensional photonic quantum ring laser with an equilateral triangle microcavity.
We have fabricated three-dimensional (3D) photonic quantum ring lasers with an equilateral triangle microcavity. Their spectra were well explained by combining the off-normal resonance and hexagonally bounced in-plane whispering-gallery-mode condition. The angular distribution of the emission modes and their discrete wavelengths were shown to be in excellent agreement with a 3D Rayleigh Fabry-Perot model. We confirmed that the allowed modes in the equilateral triangle microcavity decrease by decreasing the length of equilateral triangle side, L, and the spectral mode spacing linearly increases with the mode index m and is inversely proportional to L2.
Yoon
Junho
J
Department of Electronic and Electrical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea.
An
Sung-Jae
SJ
Kim
Kwanghae
K
Ku
Ja Kang
JK
Kwon
O'Dae
O