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Title: A single-shot spatial chirp method for measuring initial AC conductivity evolution of femtosecond laser pulse excited warm dense matter

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4962057· OSTI ID:1350590
 [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [3];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Alberta, Edmonton, AB (Canada)
  3. Univ. of Alberta, Edmonton, AB (Canada)

To study the rapid evolution of AC conductivity from ultrafast laser excited warm dense matter (WDM), a spatial chirp single-shot method is developed utilizing a crossing angle pump-probe configuration. The pump beam is shaped individually in two spatial dimensions so that it can provide both sufficient laser intensity to excite the material to warm dense matter state and a uniform time window of up to 1 ps with sub-100 fs FWHM temporal resolution. Here, temporal evolution of AC conductivity in laser excited warm dense gold was also measured.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1350590
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 11; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (16)

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Absorption of Ultrashort Laser Pulses by Solid Targets Heated Rapidly to Temperatures 1–1000 eV journal July 1995
Atomic-Scale Visualization of Inertial Dynamics journal April 2005
Dual-echelon single-shot femtosecond spectroscopy journal April 2000
Evolution of ac Conductivity in Nonequilibrium Warm Dense Gold journal March 2013
Warm dense matter created by isochoric laser heating journal June 2010
Free-Electron X-Ray Laser Measurements of Collisional-Damped Plasmons in Isochorically Heated Warm Dense Matter journal September 2015
Optical Properties in Nonequilibrium Phase Transitions journal February 2006
Single-shot spectral interferometry with chirped pulses journal January 2001
Pulse-length-limited ultrafast pump–probe spectroscopy in a single laser shot journal May 1994
Comparison of ultrashort-pulse frequency-resolved-optical-gating traces for three common beam geometries journal January 1994
Direct measurement of nonequilibrium electron-energy distributions in subpicosecond laser-heated gold films journal May 1992
Single-State Measurement of Electrical Conductivity of Warm Dense Gold journal March 2004

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The uniform electron gas at warm dense matter conditions journal May 2018

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