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Title: Size dependent nonlinear optical properties of YCrO{sub 3} nanosystems

We report size-dependent optical limiting response of YCrO{sub 3} nanosystems upon illumination by nanosecond laser pulses at 532 nm. The limiting properties were investigated using the open aperture z-scan technique. Three-photon absorption coefficient is found to increase with particle size within the range of our investigations. We propose that the obtained nonlinearity is caused by two photon absorption, followed by excited state absorption.
Authors:
 [1] ; ;  [2] ;  [3]
  1. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam-686 560, Kerala (India)
  2. Light and Matter Physics Group, Raman Research Institute, Bangalore- 560 080, Karnataka (India)
  3. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam-686 560, Kerala and Center for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam-686 560, Kerala (India)
Publication Date:
OSTI Identifier:
22264002
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1576; Journal Issue: 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; EXCITED STATES; LASERS; NANOSTRUCTURES; OPTICAL PROPERTIES; PARTICLE SIZE; PHOTONS; PULSES