GaN blue photonic crystal membrane nanocavities

• Published in: Applied physics letters Vol. 87; no. 24; pp. 243101 - 243101-3
• Main Authors: Choi, Y.-S., Hennessy, K., Sharma, R., Haberer, E., Gao, Y., DenBaars, S. P., Nakamura, S., Hu, E. L., Meier, C.
• Format: Journal Article
• Language: English
• Published: American Institute of Physics 12-12-2005
• ISSN: 0003-6951; 1077-3118
• DOI: 10.1063/1.2147713

GaN-based photonic-crystal membrane nanocavities with
Q
factors up to 800 have been realized at the wavelength of
∼
480
nm
. The tuning behavior agrees well with numerical calculations using the finite-difference time-domain method. Theoretically, the lowest energy mode of a cavity that consists of seven missing holes in the
Γ
-
K
direction promises a
Q
factor as high as
4
×
10
4
with a mode volume of about
1.3
×
(
λ
∕
n
)
3
.