Pulse retrieval in frequency-resolved optical gating based on the method of generalized projections

1994 ◽  
Vol 19 (24) ◽  
pp. 2152 ◽  
Author(s):  
Kenneth W. DeLong ◽  
Bern Kohler ◽  
Kent Wilson ◽  
David N. Fittinghoff ◽  
Rick Trebino
Keyword(s):  
Optical Gating ◽  
Generalized Projections ◽  
Frequency Resolved Optical Gating

scholarly journals Plasma-mirror frequency-resolved optical gating for simultaneous retrieval of a chirped vacuum-ultraviolet waveform and time-dependent reflectivity

2016 ◽  
Vol 4 ◽  
Author(s):  
Ryuji Itakura ◽  
Takayuki Kumada ◽  
Motoyoshi Nakano ◽  
Hiroshi Akagi
Keyword(s):  
Vacuum Ultraviolet ◽  
Fused Silica ◽  
Least Square ◽  
Time Dependent ◽  
Fresnel Reflection ◽  
Reflection Spectroscopy ◽  
Time Resolved ◽  
Optical Gating ◽  
Generalized Projections ◽  
Frequency Resolved Optical Gating

We demonstrate that the methodology of frequency-resolved optical gating (FROG) is applicable to time-resolved reflection spectroscopy of a plasma mirror in the vacuum-ultraviolet (VUV) region. Our recent study [R. Itakura et al. Opt. Express 23, 10914 (2015)] has shown that a VUV waveform can be retrieved from a VUV reflection spectrogram of a plasma mirror formed on a fused silica (FS) surface by irradiation with an intense femtosecond laser pulse. Simultaneously, the increase in the reflectivity with respect to the Fresnel reflection of the unexcited FS surface can be obtained as a time-dependent reflectivity of the plasma mirror. In this study, we update the FROG analysis procedure using the least-square generalized projections algorithm. This procedure can reach convergence much faster than the previous one and has no aliasing problem. It is demonstrated that a significantly chirped VUV pulse as long as 1 ps can be precisely characterized.

Third-harmonic interferometric frequency-resolved optical gating

2017 ◽  
Vol 34 (11) ◽  
pp. 2367 ◽  
Author(s):  
Janne Hyyti ◽  
Esmerando Escoto ◽  
Günter Steinmeyer
Keyword(s):  
Third Harmonic ◽  
Optical Gating ◽  
Frequency Resolved Optical Gating

Commissioning of a frequency-resolved optical gating system at the OMEGA EP laser facility: SpecFROG

2015 ◽  
Vol 86 (9) ◽  
pp. 093501 ◽  
Author(s):  
G. E. Kemp ◽  
A. Link ◽  
Y. Ping ◽  
S. Ayers ◽  
P. K. Patel
Keyword(s):  
Gating System ◽  
Optical Gating ◽  
Laser Facility ◽  
Frequency Resolved Optical Gating
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