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Title: Z-scan: A simple technique for determination of third-order optical nonlinearity

Z-scan is a simple experimental technique to measure intensity dependent nonlinear susceptibilities of third-order nonlinear optical materials. This technique is used to measure the sign and magnitude of both real and imaginary part of the third order nonlinear susceptibility (χ{sup (3)}) of nonlinear optical materials. In this paper, we investigate third-order nonlinear optical properties of Ag-polymer composite film by using single beam z-scan technique with Q-switched, frequency doubled Nd: YAG laser (λ=532 nm) at 5 ns pulse. The values of nonlinear absorption coefficient (β), nonlinear refractive index (n{sub 2}) and third-order nonlinear optical susceptibility (χ{sup (3)}) of permethylazine were found to be 9.64 × 10{sup −7} cm/W, 8.55 × 10{sup −12} cm{sup 2}/W and 5.48 × 10{sup −10} esu, respectively.
Authors:
 [1] ;  [2]
  1. Department of Applied Science, N.C. College of Engineering, Israna, Panipat-132107, Haryana (India)
  2. Department of Physics, Chaudhary Devi Lal University, Sirsa-125055, Haryana (India)
Publication Date:
OSTI Identifier:
22488883
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; AZINES; COMPOSITE MATERIALS; FILMS; LASER RADIATION; NEODYMIUM LASERS; NONLINEAR PROBLEMS; ORGANIC POLYMERS; Q-SWITCHING; REFRACTIVE INDEX; SILVER