Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength

Heterodyning by a phase stable reference electric field is a well known technique to amplify weak nonlinear signals. For short wavelength, the generation of a reference field in front of the sample is challenging because of a lack of suitable beamsplitters. Here, we use a permanent grating which mat...

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Main Authors: Jakob Grilj, Emily Sistrunk, Jaewoo Jeong, Mahesh G. Samant, Alexander X. Gray, Hermann A. Dürr, Stuart S. P. Parkin, Markus Gühr
Format: Article
Language:English
Published: MDPI AG 2015-04-01
Series:Photonics
Subjects:
Online Access:http://www.mdpi.com/2304-6732/2/2/392
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author Jakob Grilj
Emily Sistrunk
Jaewoo Jeong
Mahesh G. Samant
Alexander X. Gray
Hermann A. Dürr
Stuart S. P. Parkin
Markus Gühr
author_facet Jakob Grilj
Emily Sistrunk
Jaewoo Jeong
Mahesh G. Samant
Alexander X. Gray
Hermann A. Dürr
Stuart S. P. Parkin
Markus Gühr
author_sort Jakob Grilj
collection DOAJ
description Heterodyning by a phase stable reference electric field is a well known technique to amplify weak nonlinear signals. For short wavelength, the generation of a reference field in front of the sample is challenging because of a lack of suitable beamsplitters. Here, we use a permanent grating which matches the line spacing of the transient grating for the creation of a phase stable reference field. The relative phase among the two can be changed by a relative translation of the permanent and transient gratings in direction orthogonal to the grating lines. We demonstrate the technique for a transient grating on a VO2 thin film and observe constructive as well as destructive interference signals.
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spelling doaj.art-3e1e9a0bcbac435b8e6dc5cbeb3edf532022-12-22T00:19:42ZengMDPI AGPhotonics2304-67322015-04-012239240110.3390/photonics2020392photonics2020392Self Referencing Heterodyne Transient Grating Spectroscopy with Short WavelengthJakob Grilj0Emily Sistrunk1Jaewoo Jeong2Mahesh G. Samant3Alexander X. Gray4Hermann A. Dürr5Stuart S. P. Parkin6Markus Gühr7Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USAStanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USAIBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USAIBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USASIMES, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USASIMES, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USAIBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USAStanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USAHeterodyning by a phase stable reference electric field is a well known technique to amplify weak nonlinear signals. For short wavelength, the generation of a reference field in front of the sample is challenging because of a lack of suitable beamsplitters. Here, we use a permanent grating which matches the line spacing of the transient grating for the creation of a phase stable reference field. The relative phase among the two can be changed by a relative translation of the permanent and transient gratings in direction orthogonal to the grating lines. We demonstrate the technique for a transient grating on a VO2 thin film and observe constructive as well as destructive interference signals.http://www.mdpi.com/2304-6732/2/2/392transient gratingheterodyne detectionextreme ultraviolet
spellingShingle Jakob Grilj
Emily Sistrunk
Jaewoo Jeong
Mahesh G. Samant
Alexander X. Gray
Hermann A. Dürr
Stuart S. P. Parkin
Markus Gühr
Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
Photonics
transient grating
heterodyne detection
extreme ultraviolet
title Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
title_full Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
title_fullStr Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
title_full_unstemmed Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
title_short Self Referencing Heterodyne Transient Grating Spectroscopy with Short Wavelength
title_sort self referencing heterodyne transient grating spectroscopy with short wavelength
topic transient grating
heterodyne detection
extreme ultraviolet
url http://www.mdpi.com/2304-6732/2/2/392
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