dorsal/arxiv
View SchemaReflection of light from a disordered medium backed by a phase-conjugating mirror
| Authors | J. C. J. Paasschens, M. J. M. de Jong, P. W. Brouwer, C. W. J. Beenakker |
|---|---|
| Categories | |
| ArXiv ID | physics/9708010 |
| URL | https://arxiv.org/abs/physics/9708010 |
| DOI | 10.1103/PhysRevA.56.4216 |
| Journal | Phys. Rev. A 56, 4216 (1997) |
Abstract
This is a theoretical study of the interplay of optical phase-conjugation and multiple scattering. We calculate the intensity of light reflected by a phase-conjugating mirror when it is placed behind a disordered medium. We compare the results of a fully phase-coherent theory with those from the theory of radiative transfer. Both methods are equivalent if the dwell time \tau_{dwell} of a photon in the disordered medium is much larger than the inverse of the frequency shift 2\Delta\omega acquired at the phase-conjugating mirror. When \tau_{dwell} \Delta\omega < 1, in contrast, phase coherence drastically affects the reflected intensity. In particular, a minimum in the dependence of the reflectance on the disorder strength disappears when \Delta\omega is reduced below 1/\tau_{dwell}. The analogies and differences with Andreev reflection of electrons at the interface between a normal metal and a superconductor are discussed.
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"abstract": "This is a theoretical study of the interplay of optical phase-conjugation and\nmultiple scattering. We calculate the intensity of light reflected by a\nphase-conjugating mirror when it is placed behind a disordered medium. We\ncompare the results of a fully phase-coherent theory with those from the theory\nof radiative transfer. Both methods are equivalent if the dwell time\n\\tau_{dwell} of a photon in the disordered medium is much larger than the\ninverse of the frequency shift 2\\Delta\\omega acquired at the phase-conjugating\nmirror. When \\tau_{dwell} \\Delta\\omega \u003c 1, in contrast, phase coherence\ndrastically affects the reflected intensity. In particular, a minimum in the\ndependence of the reflectance on the disorder strength disappears when\n\\Delta\\omega is reduced below 1/\\tau_{dwell}. The analogies and differences\nwith Andreev reflection of electrons at the interface between a normal metal\nand a superconductor are discussed.",
"arxiv_id": "physics/9708010",
"authors": [
"J. C. J. Paasschens",
"M. J. M. de Jong",
"P. W. Brouwer",
"C. W. J. Beenakker"
],
"categories": [
"physics.optics",
"cond-mat.dis-nn"
],
"doi": "10.1103/PhysRevA.56.4216",
"journal_ref": "Phys. Rev. A 56, 4216 (1997)",
"title": "Reflection of light from a disordered medium backed by a phase-conjugating mirror",
"url": "https://arxiv.org/abs/physics/9708010"
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