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Title: Time-stretched photonic Doppler velocimetry

Abstract

Inertial confinement fusion facilities generate implosions at speeds greater than 100 km/s, and measuring the material velocities is important and challenging. We have developed a new velocimetry technique that uses time-stretched spectral interferometry to increase the measurable velocity range normally limited by the detector bandwidth. In this approach, the signal is encoded on a chirped laser pulse that is stretched in time to reduce the beat frequency before detection. We demonstrate the technique on an imploding liner experiment at the Sandia National Laboratories’ Z machine, where beat frequencies in excess of 50 GHz were measured with 20 GHz bandwidth detection.

Authors:
 [1];  [1];  [2];  [3];  [3]; ORCiD logo [1]
  1. Nevada National Security Site, Santa Barbara, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Nevada National Security Site, Los Alamos, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
OSTI Identifier:
1557922
Alternate Identifier(s):
OSTI ID: 1570296
Report Number(s):
SAND-2019-10025J
Journal ID: ISSN 1094-4087; OPEXFF; 678813
Grant/Contract Number:  
AC04-94AL85000; NA0003525; NA0003624
Resource Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 27; Journal Issue: 18; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Mance, Jason G., La Lone, Brandon M., Dolan, D. H., Payne, Sheri L., Ramsey, Darrell L., and Veeser, Lyne R. Time-stretched photonic Doppler velocimetry. United States: N. p., 2019. Web. doi:10.1364/OE.27.025022.
Mance, Jason G., La Lone, Brandon M., Dolan, D. H., Payne, Sheri L., Ramsey, Darrell L., & Veeser, Lyne R. Time-stretched photonic Doppler velocimetry. United States. doi:10.1364/OE.27.025022.
Mance, Jason G., La Lone, Brandon M., Dolan, D. H., Payne, Sheri L., Ramsey, Darrell L., and Veeser, Lyne R. Tue . "Time-stretched photonic Doppler velocimetry". United States. doi:10.1364/OE.27.025022.
@article{osti_1557922,
title = {Time-stretched photonic Doppler velocimetry},
author = {Mance, Jason G. and La Lone, Brandon M. and Dolan, D. H. and Payne, Sheri L. and Ramsey, Darrell L. and Veeser, Lyne R.},
abstractNote = {Inertial confinement fusion facilities generate implosions at speeds greater than 100 km/s, and measuring the material velocities is important and challenging. We have developed a new velocimetry technique that uses time-stretched spectral interferometry to increase the measurable velocity range normally limited by the detector bandwidth. In this approach, the signal is encoded on a chirped laser pulse that is stretched in time to reduce the beat frequency before detection. We demonstrate the technique on an imploding liner experiment at the Sandia National Laboratories’ Z machine, where beat frequencies in excess of 50 GHz were measured with 20 GHz bandwidth detection.},
doi = {10.1364/OE.27.025022},
journal = {Optics Express},
number = 18,
volume = 27,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1364/OE.27.025022

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