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Analysis of sinusoidally modulated chirped laser pulses by temporally encoded spectral shifting

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/OL.41.005503· OSTI ID:1440945
 [1];  [2];  [2];  [3];  [4]
  1. Univ. of Texas, Austin, TX (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of Texas, Austin, TX (United States)
+ Show Author Affiliations

We present here an analytical formalism elucidating how information is stored in chirped optical probes by describing the effects of sinusoidal temporal modulations on the electric field. We show that the modulations produce spectral sidebands which can be interpreted as temporal sidebands due to the time-wavelength mapping, an effect we call temporally encoded spectral shifting (TESS). A derivation is presented for the case of chirped-pulse spectral interferometry showing how to recover both the amplitude and the periodicity of the modulation from a Fourier transform of the interferogram. The TESS effect, which provides an intuitive picture for interpreting pump-probe experiments with chirped pulses, is illustrated for probing wakefields from a laser-plasma accelerator.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1440945
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 23 Vol. 41; ISSN 0146-9592; ISSN OPLEDP
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English

References (10)

High-temporal-resolution, single-shot characterization of terahertz pulses journal January 2003
Single-shot spatiotemporal measurements of ultrashort THz waveforms using temporal electric-field cross correlation journal December 2010
Spectral sidebands on a narrow-bandwidth optical probe as a broad-bandwidth THz pulse diagnostic journal January 2011
Temporal Characterization of Femtosecond Laser-Plasma-Accelerated Electron Bunches Using Terahertz Radiation journal January 2006
Snapshots of laser wakefields journal October 2006
Algorithm for high-resolution single-shot THz measurement using in-line spectral interferometry with chirped pulses journal November 2005
Single-Shot Electron-Beam Bunch Length Measurements journal March 2002
Distortion and uncertainty in chirped pulse THz journal January 2002
Chirped pulse reflectivity and frequency domain interferometry in laser driven shock experiments journal September 1999
Optimal chirped probe pulse length for terahertz pulse measurement journal January 2008

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