Polarization conversion in cubic Raman crystals

Aaron McKay; Alexander Sabella; Richard P. Mildren

doi:10.1038/srep41702

Polarization conversion in cubic Raman crystals

Aaron McKay^*, Alexander Sabella, Richard P. Mildren

^*Corresponding author for this work

MQ Photonics Research Centre

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

25 Downloads (Pure)

Abstract

Nonlinear conversion of unpolarized beams to lower frequencies is generally inefficient in χ⁽²⁾ materials, as it is challenging to achieve phase-matching for input ordinary and extraordinary beams simultaneously in the normal dispersion regime. Here, we show that cubic Raman crystals having doubly and triply degenerate (E and F type) modes provide a method for efficient nonlinear frequency downconversion of an unpolarized beam and yield a linearly polarized output state. Using Mueller calculus, optimal crystal directions for such polarization conversion are determined. Using diamond, an example of an F-class Raman crystal, we have verified that such conversion is possible with near quantum-defect-limited slope efficiency and a linear polarization contrast of more than 23.9 dB.

Original language	English
Article number	41702
Pages (from-to)	1-8
Number of pages	8
Journal	Scientific Reports
Volume	7
DOIs	https://doi.org/10.1038/srep41702
Publication status	Published - 7 Feb 2017

Bibliographical note

Copyright The Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Access to Document

10.1038/srep41702

Publisher version (open access)Final published version, 926 KBLicence: CC BY

Cite this

@article{98538b598945433184975ba4d174d8ed,

title = "Polarization conversion in cubic Raman crystals",

abstract = "Nonlinear conversion of unpolarized beams to lower frequencies is generally inefficient in χ(2) materials, as it is challenging to achieve phase-matching for input ordinary and extraordinary beams simultaneously in the normal dispersion regime. Here, we show that cubic Raman crystals having doubly and triply degenerate (E and F type) modes provide a method for efficient nonlinear frequency downconversion of an unpolarized beam and yield a linearly polarized output state. Using Mueller calculus, optimal crystal directions for such polarization conversion are determined. Using diamond, an example of an F-class Raman crystal, we have verified that such conversion is possible with near quantum-defect-limited slope efficiency and a linear polarization contrast of more than 23.9 dB.",

author = "Aaron McKay and Alexander Sabella and Mildren, {Richard P.}",

note = "Copyright The Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2017",

month = feb,

day = "7",

doi = "10.1038/srep41702",

language = "English",

volume = "7",

pages = "1--8",

journal = "Scientific Reports",

issn = "2045-2322",

publisher = "Springer, Springer Nature",

}

TY - JOUR

T1 - Polarization conversion in cubic Raman crystals

AU - McKay, Aaron

AU - Sabella, Alexander

AU - Mildren, Richard P.

N1 - Copyright The Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2017/2/7

Y1 - 2017/2/7

N2 - Nonlinear conversion of unpolarized beams to lower frequencies is generally inefficient in χ(2) materials, as it is challenging to achieve phase-matching for input ordinary and extraordinary beams simultaneously in the normal dispersion regime. Here, we show that cubic Raman crystals having doubly and triply degenerate (E and F type) modes provide a method for efficient nonlinear frequency downconversion of an unpolarized beam and yield a linearly polarized output state. Using Mueller calculus, optimal crystal directions for such polarization conversion are determined. Using diamond, an example of an F-class Raman crystal, we have verified that such conversion is possible with near quantum-defect-limited slope efficiency and a linear polarization contrast of more than 23.9 dB.

AB - Nonlinear conversion of unpolarized beams to lower frequencies is generally inefficient in χ(2) materials, as it is challenging to achieve phase-matching for input ordinary and extraordinary beams simultaneously in the normal dispersion regime. Here, we show that cubic Raman crystals having doubly and triply degenerate (E and F type) modes provide a method for efficient nonlinear frequency downconversion of an unpolarized beam and yield a linearly polarized output state. Using Mueller calculus, optimal crystal directions for such polarization conversion are determined. Using diamond, an example of an F-class Raman crystal, we have verified that such conversion is possible with near quantum-defect-limited slope efficiency and a linear polarization contrast of more than 23.9 dB.

UR - http://www.scopus.com/inward/record.url?scp=85011884545&partnerID=8YFLogxK

UR - http://purl.org/au-research/grants/arc/DP130103799

U2 - 10.1038/srep41702

DO - 10.1038/srep41702

M3 - Article

C2 - 28169327

AN - SCOPUS:85011884545

SN - 2045-2322

VL - 7

SP - 1

EP - 8

JO - Scientific Reports

JF - Scientific Reports

M1 - 41702

ER -

Polarization conversion in cubic Raman crystals

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this