| Title |
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Nonlinear coupling between axisymmetrically-polarized ultrashort optical pulses in a uniaxial crystal
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| Creator |
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| Accessrights |
open access |
| Rights |
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en
©2014 Optical Society of America
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| Description |
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Abstract
en
Nonlinear propagation of focused axisymmetrically-polarized ultrashort optical pulses along the optic axis in a uniaxial crystal is investigated experimentally and theoretically. The energy transfer between an azimuthally-polarized pulse and a radially-polarized pulse is observed. To analyze the nonlinear propagation, a general paraxial equation with a third-order nonlinearity for axisymmetrically-polarized pulses in a uniaxial crystal is derived and the extended Stokes parameters (ESPs) based on cylindrical coordinates are newly-introduced. The simulation results by using this equation, providing the calculated ESPs, well explain our experimental observations: 1) the energy transfer is attributed to the four-wave-mixing effect, reflecting the overlapping between the axisymmetrically polarized modes, 2) the variations of the polarization defined from the ESPs are clarified to be affected by the self-and the cross-phase modulations, which make the effective propagation length long or short.
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| Publisher |
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Optical Society
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| Date |
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| Language |
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| Resource Type |
journal article |
| Version Type |
VoR |
| Identifier |
HDL
http://hdl.handle.net/2115/57184
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| Relation |
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isIdenticalTo
DOI
https://doi.org/10.1364/OE.22.016903
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PMID
25090507
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| Journal |
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Optics Express
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Volume Number22
Issue Number14
Page Start16903
Page End16915
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| File |
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| Oaidate |
2023-07-26 |
