Room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers with single longitudinal and lateral mode performance
| Data(s) |
2010
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| Resumo |
We demonstrate room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers emitting at 4.7 mu m. A rectangular photonic crystal lattice perpendicular to the cleaved facet was defined using holographic lithography. The anticrossing of the index- and Bragg-guided dispersions of rectangular lattice forms the band-edge mode with extended mode volume and reduced group velocity. Utilizing this coupling mechanism, single mode operation with a near-diffractive-limited divergence angle of 12 degrees is obtained for 33 mu m wide devices in a temperature range of 85-300 K. The reduced threshold current densities and improved heat dissipation management contribute to the realization of devices' room temperature operation. Submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-13T14:20:37Z No. of bitstreams: 1 Room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers with single longitudinal and lateral mode performance.pdf: 453666 bytes, checksum: 703b35c3bd801c8701490f001e68fa0f (MD5) Approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-04-13T14:31:14Z (GMT) No. of bitstreams: 1 Room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers with single longitudinal and lateral mode performance.pdf: 453666 bytes, checksum: 703b35c3bd801c8701490f001e68fa0f (MD5) Made available in DSpace on 2010-04-13T14:31:14Z (GMT). No. of bitstreams: 1 Room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers with single longitudinal and lateral mode performance.pdf: 453666 bytes, checksum: 703b35c3bd801c8701490f001e68fa0f (MD5) Previous issue date: 2010 National Research Projects of China 60525406 60736031 60806018 60906026 2006CB604903 2007AA03Z446 2009AA03Z403 其它 National Research Projects of China 60525406 60736031 60806018 60906026 2006CB604903 2007AA03Z446 2009AA03Z403 |
| Identificador | |
| Idioma(s) |
英语 |
| Fonte |
Lu QY (Lu Quan-Yong), Guo WH (Guo Wan-Hong), Zhang W (Zhang Wei), Wang LJ (Wang Li-Jun), Liu JQ (Liu Jun-Qi), Li L (Li Lu), Liu FQ (Liu Feng-Qi), Wang ZG (Wang Zhan-Guo) .Room temperature operation of photonic-crystal distributed-feedback quantum cascade lasers with single longitudinal and lateral mode performance.APPLIED PHYSICS LETTERS,2010,96(5):Art. No. 051112 |
| Palavras-Chave | #半导体材料 #distributed feedback lasers #holography #photonic crystals #quantum cascade lasers #LITHOGRAPHY #DIFFRACTION |
| Tipo |
期刊论文 |
