skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Time-stretched photonic Doppler velocimetry

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.27.025022· OSTI ID:1557922

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.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
Grant/Contract Number:
NA0003525; NA0003624; AC04-94AL85000
OSTI ID:
1557922
Alternate ID(s):
OSTI ID: 1570296
Report Number(s):
SAND-2019-10025J; OPEXFF
Journal Information:
Optics Express, Journal Name: Optics Express Vol. 27 Journal Issue: 18; ISSN 1094-4087
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (28)

Photonic time-stretched analog-to-digital converter: fundamental concepts and practical considerations journal December 2003
Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility journal November 2004
Formulas for Fabry–Perot velocimeter performance using both stripe and multifrequency techniques journal January 1991
Laser interferometer for measuring high velocities of any reflecting surface journal November 1972
Compact system for high-speed velocimetry using heterodyne techniques journal August 2006
Real time noise and wavelength correlations in octave-spanning supercontinuum generation journal January 2013
High-speed nanometer-resolved imaging vibrometer and velocimeter journal March 2011
Femtosecond real-time single-shot digitizer journal October 2007
Broadband stimulated Raman scattering spectroscopy by a photonic time stretcher journal January 2016
Simultaneous broadband laser ranging and photonic Doppler velocimetry for dynamic compression experiments journal February 2015
Multi-reference broadband laser ranging to increase the measuring range journal March 2019
Time-stretched analogue-to-digital conversion journal January 1998
Time-Wavelength Spectroscopy for Chemical Sensing journal April 2004
Optical rogue waves journal December 2007
Real-time tracking of single shockwaves via amplified time-stretch imaging journal April 2018
Temperature and multi-species measurements by supercontinuum absorption spectroscopy for IC engine applications journal January 2013
Tracking an imploding cylinder with photonic Doppler velocimetry journal May 2013
Resolving the build-up of femtosecond mode-locking with single-shot spectroscopy at 90 MHz frame rate journal March 2016
Initial experimental demonstration of the principles of a xenon gas shield designed to protect optical components from soft x-ray induced opacity (blanking) in high energy density experiments journal March 2017
Velocimetry of fast surfaces using Fabry–Perot interferometry journal January 1988
Time stretch and its applications journal June 2017
Amplified wavelength–time transformation for real-time spectroscopy journal December 2007
Ultrafast ranging lidar based on real-time Fourier transformation journal January 2009
Equation of State for Nineteen Metallic Elements from Shock‐Wave Measurements to Two Megabars journal July 1960
Velocity sensing interferometer (VISAR) modification journal January 1979
The first target experiments on the National Ignition Facility journal May 2006
Direct measurement of the inertial confinement time in a magnetically driven implosion journal April 2017
Considerations for a PDV diagnostic capability on the National Ignition Facility conference September 2016

Figures / Tables (6)


Similar Records

Photonic Doppler velocimetry of laser-ablated ultrathin metals
Journal Article · Mon Jan 15 00:00:00 EST 2007 · Review of Scientific Instruments · OSTI ID:1557922

Miteq DR-125G-A, 12-GHZ Fiber-Optic Detector Evaluations for Photonic Doppler Velocimetry Diagnostic
Technical Report · Sun Apr 01 00:00:00 EDT 2007 · OSTI ID:1557922

Photonic Doppler Velocimetry Multiplexing Techniques: Evaluation of Photonic Techniques
Conference · Thu May 24 00:00:00 EDT 2012 · OSTI ID:1557922

Related Subjects