Single shot measurement of light pulse duration by detection of excited acoustic wave

1989 ◽  
Vol 22 (10) ◽  
pp. 1423-1428 ◽  
Author(s):  
I Buchvarov ◽  
S M Saltiel ◽  
V E Gusev ◽  
V T Platonenko
Keyword(s):  
Acoustic Wave ◽  
Pulse Duration ◽  
Light Pulse ◽  
Single Shot

scholarly journals Tracing Evolution of Angle-Wavelength Spectrum along the 40-m Postfilament in Corridor Air

Photonics ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 446
Author(s):  
Daria V. Mokrousova ◽  
Dmitrii V. Pushkarev ◽  
Nikolay A. Panov ◽  
Irina A. Nikolaeva ◽  
Daniil E. Shipilo ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Red Shift ◽  
Beam Axis ◽  
Beam Divergence ◽  
Single Shot ◽  
Pulse Spectrum ◽  
Air Dispersion ◽  
Longitudinal Extension

Postfilamentation channel resulting from filamentation of freely propagating 744-nm, 5-mJ, 110-fs pulse in the corridor air is examined experimentally and in simulations. The longitudinal extension of postfilament was determined to be 55–95 m from the compressor output. Using single-shot angle-wavelength spectra measurements, we observed a series of red-shifted maxima in the spectrum, localized on the beam axis with the divergence below 0.5 mrad. In the range 55–70 m, the number of maxima and their red-shift increase with the distance reaching 1 μm, while the pulse duration measured by the autocorrelation technique is approximately constant. Further on, for distances larger than 70 m and up to 95 m, the propagation is characterized by the suppressed beam divergence and unchanged pulse spectrum. The pulse duration increases due to the normal air dispersion.

scholarly journals FLASH free-electron laser single-shot temporal diagnostic: terahertz-field-driven streaking

2018 ◽  
Vol 25 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Rosen Ivanov ◽  
Jia Liu ◽  
Günter Brenner ◽  
Maciej Brachmanski ◽  
Stefan Düsterer
Keyword(s):  
Spectral Analysis ◽  
Pulse Duration ◽  
Free Electron ◽  
Free Electron Laser ◽  
Arrival Time ◽  
Single Shot ◽  
Pulse Arrival Time ◽  
Photon Pulse ◽  
Operation Stability ◽  
Pulse Arrival

The commissioning of a terahertz-field-driven streak camera installed at the free-electron laser (FEL) FLASH at DESY in Hamburg, being able to deliver photon pulse duration as well as arrival time information with ∼10 fs resolution for each single XUV FEL pulse, is reported. Pulse durations between 300 fs and <15 fs have been measured for different FLASH FEL settings. A comparison between the XUV pulse arrival time and the FEL electron bunch arrival time measured at the FLASH linac section exhibits a correlation width of 20 fs r.m.s., thus demonstrating the excellent operation stability of FLASH. In addition, the terahertz-streaking setup was operated simultaneously to an alternative method to determine the FEL pulse duration based on spectral analysis. FLASH pulse duration derived from simple spectral analysis is in good agreement with that from terahertz-streaking measurement.

Single shot measurement of pulse duration for a picosecond pulse at 249 nm

1989 ◽  
Vol 28 (19) ◽  
pp. 4054 ◽  
Author(s):  
Ian N. Ross ◽  
D. Karadia ◽  
J. M. Barr
Keyword(s):  
Pulse Duration ◽  
Picosecond Pulse ◽  
Single Shot
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