Electrically driven single-cell photonic crystal laser.
We report the experimental demonstration of an electrically driven, single-mode, low threshold current (approximately 260 microA) photonic band gap laser operating at room temperature. The electrical current pulse is injected through a sub-micrometer-sized semiconductor wire at the center of the mode with minimal degradation of the quality factor. The actual mode of interest operates in a nondegenerate monopole mode, as evidenced through the comparison of the measurement with the computation based on the actual fabricated structural parameters. As a small step toward a thresholdless laser or a single photon source, this wavelength-size photonic crystal laser may be of interest to photonic crystals, cavity quantum electrodynamics, and quantum information communities.
Park
Hong-Gyu
HG
Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
Kim
Se-Heon
SH
Kwon
Soon-Hong
SH
Ju
Young-Gu
YG
Yang
Jin-Kyu
JK
Baek
Jong-Hwa
JH
Kim
Sung-Bock
SB
Lee
Yong-Hee
YH