dorsal/arxiv
View SchemaEffect of local pumping on random laser modes
| Authors | X. Wu, J. Andreasen, H. Cao, A. Yamilov |
|---|---|
| Categories | |
| ArXiv ID | physics/0701193 |
| URL | https://arxiv.org/abs/physics/0701193 |
| DOI | 10.1364/JOSAB.24.000A26 |
Abstract
We have developed a numerical method based on the transfer matrix to calculate the quasimodes and lasing modes in one-dimensional random systems. Depending on the relative magnitude of the localization length versus the system size, there are two regimes in which the quasimodes are distinct in spatial profile and frequency distribution. In the presence of uniform gain, the lasing modes have one-to-one correspondence to the quasimodes in both regimes. Local excitation may enhance the weight of a mode within the gain region due to local amplification, especially in a weakly scattering system.
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"date_created": "2026-03-02T18:01:17.637000Z",
"date_modified": "2026-03-02T18:01:17.637000Z",
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"abstract": "We have developed a numerical method based on the transfer matrix to\ncalculate the quasimodes and lasing modes in one-dimensional random systems.\nDepending on the relative magnitude of the localization length versus the\nsystem size, there are two regimes in which the quasimodes are distinct in\nspatial profile and frequency distribution. In the presence of uniform gain,\nthe lasing modes have one-to-one correspondence to the quasimodes in both\nregimes. Local excitation may enhance the weight of a mode within the gain\nregion due to local amplification, especially in a weakly scattering system.",
"arxiv_id": "physics/0701193",
"authors": [
"X. Wu",
"J. Andreasen",
"H. Cao",
"A. Yamilov"
],
"categories": [
"physics.optics"
],
"doi": "10.1364/JOSAB.24.000A26",
"title": "Effect of local pumping on random laser modes",
"url": "https://arxiv.org/abs/physics/0701193"
},
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"variant": "snapshot-2026-03-01",
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