Quantum spectra of Raman photon pairs from a mesoscopic particle
Quantum Langevin formalism with noise operators is used to provide quantum descriptions of photon pairs (the Stokes and anti-Stokes fields) emitted by a mesoscopic spherical particle composed of quantum particles in a double Raman configuration. The spectra of the fields obtained are sensitive to th...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/103521 http://hdl.handle.net/10220/38772 |
| _version_ | 1826129626492043264 |
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| author | Kam, Chan Hin Ooi, Chong Heng Raymond W. M. Edmund, Loh |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Kam, Chan Hin Ooi, Chong Heng Raymond W. M. Edmund, Loh |
| author_sort | Kam, Chan Hin |
| collection | NTU |
| description | Quantum Langevin formalism with noise operators is used to provide quantum descriptions of photon pairs (the Stokes and anti-Stokes fields) emitted by a mesoscopic spherical particle composed of quantum particles in a double Raman configuration. The spectra of the fields obtained are sensitive to the dimension of the microsphere and can be controlled by pump and control laser fields. Spectral peaks due to quantum coherence are Stark shifted by the laser fields experiencing autofocusing inside the spherical particle, causing broadening of peaks as the size of the microsphere increases. The antinormal-order spectrum is found to be identical to the normal-order spectrum. The anti-Stokes spectrum is identical to the Stokes spectrum when the linear dispersion is neglected. Frequency-dependent dielectric functions of the Stokes and anti-Stokes spectra corresponding to the linear dispersions of the particle yield narrow morphology-dependent resonance gain peaks at certain frequencies of the Stokes and anti-Stokes spectra that depend not only on the particle size but also on the angle of observation. |
| first_indexed | 2024-10-01T07:43:17Z |
| format | Journal Article |
| id | ntu-10356/103521 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:43:17Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1035212020-03-07T14:00:37Z Quantum spectra of Raman photon pairs from a mesoscopic particle Kam, Chan Hin Ooi, Chong Heng Raymond W. M. Edmund, Loh School of Electrical and Electronic Engineering Quantum Langevin formalism with noise operators is used to provide quantum descriptions of photon pairs (the Stokes and anti-Stokes fields) emitted by a mesoscopic spherical particle composed of quantum particles in a double Raman configuration. The spectra of the fields obtained are sensitive to the dimension of the microsphere and can be controlled by pump and control laser fields. Spectral peaks due to quantum coherence are Stark shifted by the laser fields experiencing autofocusing inside the spherical particle, causing broadening of peaks as the size of the microsphere increases. The antinormal-order spectrum is found to be identical to the normal-order spectrum. The anti-Stokes spectrum is identical to the Stokes spectrum when the linear dispersion is neglected. Frequency-dependent dielectric functions of the Stokes and anti-Stokes spectra corresponding to the linear dispersions of the particle yield narrow morphology-dependent resonance gain peaks at certain frequencies of the Stokes and anti-Stokes spectra that depend not only on the particle size but also on the angle of observation. Published version 2015-10-01T08:01:40Z 2019-12-06T21:14:28Z 2015-10-01T08:01:40Z 2019-12-06T21:14:28Z 2015 2015 Journal Article Ooi, C. H. R., Loh, W. M. E., & Kam, C. H. (2015). Quantum spectra of Raman photon pairs from a mesoscopic particle. Physical Review A, 91(6), 063826-. https://hdl.handle.net/10356/103521 http://hdl.handle.net/10220/38772 10.1103/PhysRevA.91.063826 en Physical Review A © 2015 American Physical Society (APS). This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevA.91.063826]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | Kam, Chan Hin Ooi, Chong Heng Raymond W. M. Edmund, Loh Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title | Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title_full | Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title_fullStr | Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title_full_unstemmed | Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title_short | Quantum spectra of Raman photon pairs from a mesoscopic particle |
| title_sort | quantum spectra of raman photon pairs from a mesoscopic particle |
| url | https://hdl.handle.net/10356/103521 http://hdl.handle.net/10220/38772 |
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