dorsal/arxiv
View SchemaInfrared generation in low-dimensional semiconductor heterostructures via quantum coherence
| Authors | A. A. Belyanin, F. Capasso, V. V. Kocharovsky, Vl. V. Kocharovsky, M. O. Scully |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0008130 |
| URL | https://arxiv.org/abs/quant-ph/0008130 |
| DOI | 10.1103/PhysRevA.63.053803 |
Abstract
A new scheme for infrared generation without population inversion between subbands in quantum-well and quantum-dot lasers is presented and documented by detailed calculations. The scheme is based on the simultaneous generation at three frequencies: optical lasing at the two interband transitions which take place simultaneously, in the same active region, and serve as the coherent drive for the IR field. This mechanism for frequency down-conversion does not rely upon any ad hoc assumptions of long-lived coherences in the semiconductor active medium. And it should work efficiently at room temperature with injection current pumping. For optimized waveguide and cavity parameters, the intrinsic efficiency of the down-conversion process can reach the limiting quantum value corresponding to one infrared photon per one optical photon. Due to the parametric nature of IR generation, the proposed inversionless scheme is especially promising for long-wavelength (far- infrared) operation.
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"abstract": "A new scheme for infrared generation without population inversion between\nsubbands in quantum-well and quantum-dot lasers is presented and documented by\ndetailed calculations. The scheme is based on the simultaneous generation at\nthree frequencies: optical lasing at the two interband transitions which take\nplace simultaneously, in the same active region, and serve as the coherent\ndrive for the IR field. This mechanism for frequency down-conversion does not\nrely upon any ad hoc assumptions of long-lived coherences in the semiconductor\nactive medium. And it should work efficiently at room temperature with\ninjection current pumping. For optimized waveguide and cavity parameters, the\nintrinsic efficiency of the down-conversion process can reach the limiting\nquantum value corresponding to one infrared photon per one optical photon. Due\nto the parametric nature of IR generation, the proposed inversionless scheme is\nespecially promising for long-wavelength (far- infrared) operation.",
"arxiv_id": "quant-ph/0008130",
"authors": [
"A. A. Belyanin",
"F. Capasso",
"V. V. Kocharovsky",
"Vl. V. Kocharovsky",
"M. O. Scully"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.63.053803",
"title": "Infrared generation in low-dimensional semiconductor heterostructures via quantum coherence",
"url": "https://arxiv.org/abs/quant-ph/0008130"
},
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