Open AccessSimple and sensitive method for visual detection of temporal asymmetry of ultrashort laser pulses
Author(s) -
Ashok Sharma,
P. A. Naik,
P. D. Gupta
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.001389
Subject(s) - autocorrelator , optics , interferometry , asymmetry , ultrashort pulse , laser , pulse (music) , multiphoton intrapulse interference phase scan , femtosecond pulse shaping , physics , autocorrelation , pulse shaping , sensitivity (control systems) , computer science , detector , mathematics , statistics , quantum mechanics , electronic engineering , engineering
A simple method is presented for visual detection of pulse asymmetry in ultrashort laser pulses, based on an unbalanced modified spectrum auto-interferometric correlation. It may be experimentally realized using a second order interferometric autocorrelator coupled with a fast data analysis computer program or electronic hardware. This method should permit real time visual detection of a very small amount of pulse asymmetry without any "direction of time" ambiguity, with a much higher sensitivity compared to unbalanced third order correlation.