Single-shot spatiotemporal measurements of ultrashort THz waveforms using temporal electric-field cross correlation

Journal Article · Fri Jun 17 04:00:00 EDT 2011 · Journal of the Optics Society of America B

DOI:https://doi.org/10.1364/JOSAB.28.000023· OSTI ID:1032525

Matlis, Nicholas; Plateau, Guillaume; van Tilborg, Jeroen; Leemans, Wim

A new single-shot technique based on linear spectral interferometry between a temporally short reader pulse and a temporally long probe pulse is demonstrated for measuring the spatiotemporal phase and amplitude of an optical probe for use as an ultrafast diagnostic. The probe spatiotemporal field information is recovered, with a resolution set by the duration of the reader pulse, by applying a single Fourier transform operation to the interferogram image, without need of any reference data. The technique was used in conjunction with electro-optic sampling to measure waveforms of coherent, ultrashort THz pulses emitted by electron bunches from a laser-plasma accelerator with sub-50fs resolution. The presence of strong spatiotemporal coupling in the THz waveforms and of complex temporal electron-bunch structure was determined.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Accelerator& Fusion Research Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1032525
• Report Number(s): LBNL-4873E
• Journal Information: Journal of the Optics Society of America B, Journal Name: Journal of the Optics Society of America B Journal Issue: 1 Vol. 28
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
AMPLITUDES
ELECTRONS
INTERFEROMETRY
PULSES
RESOLUTION
SAMPLING
THZ RANGE
WAVE FORMS