Electrically driven single-cell photonic crystal laser |
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| Authors: | Park Hong-Gyu Kim Se-Heon Kwon Soon-Hong Ju Young-Gu Yang Jin-Kyu Baek Jong-Hwa Kim Sung-Bock Lee Yong-Hee |
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| Institution: | Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea. |
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| Abstract: | 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. |
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