dorsal/arxiv
View SchemaAbsorption with inversion and amplification without inversion in a coherently prepared V - system: a dressed state approach
| Authors | D. Braunstein, R. Shuker |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9807014 |
| URL | https://arxiv.org/abs/quant-ph/9807014 |
Abstract
Light induced absorption with population inversion and amplification without population inversion (LWI) in a coherently prepared closed three level V - type system are investigated. This study is performed from the point of view of a two color dressed state basis. Both of these processes are possible due to atomic coherence and quantum interference contrary to simple intuitive predictions. Merely on physical basis, one would expect a complementary process to the amplification without inversion. We believe that absorption in the presence of population inversion found in the dressed state picture utilized in this study, constitutes such a process. Novel approximate analytic time dependent solutions, for coherences and populations are obtained, and are compared with full numerical solutions exhibiting excellent agreement. Steady state quantities are also calculated, and the conditions under which the system exhibits absorption and gain with and without inversion, in the dressed state representation are derived. It is found that for a weak probe laser field absorption with inversion and amplification without inversion may occur, for a range of system parameters.
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"abstract": "Light induced absorption with population inversion and amplification without\npopulation inversion (LWI) in a coherently prepared closed three level V - type\nsystem are investigated. This study is performed from the point of view of a\ntwo color dressed state basis. Both of these processes are possible due to\natomic coherence and quantum interference contrary to simple intuitive\npredictions. Merely on physical basis, one would expect a complementary process\nto the amplification without inversion. We believe that absorption in the\npresence of population inversion found in the dressed state picture utilized in\nthis study, constitutes such a process.\n Novel approximate analytic time dependent solutions, for coherences and\npopulations are obtained, and are compared with full numerical solutions\nexhibiting excellent agreement. Steady state quantities are also calculated,\nand the conditions under which the system exhibits absorption and gain with and\nwithout inversion, in the dressed state representation are derived. It is found\nthat for a weak probe laser field absorption with inversion and amplification\nwithout inversion may occur, for a range of system parameters.",
"arxiv_id": "quant-ph/9807014",
"authors": [
"D. Braunstein",
"R. Shuker"
],
"categories": [
"quant-ph"
],
"title": "Absorption with inversion and amplification without inversion in a coherently prepared V - system: a dressed state approach",
"url": "https://arxiv.org/abs/quant-ph/9807014"
},
"schema_id": "dorsal/arxiv",
"source": {
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