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Title: Generation of mirage effect by heated carbon nanotube thin film

Mirage effect, a common phenomenon in nature, is a naturally occurring optical phenomenon in which lights are bent due to the gradient variation of refraction in the temperature gradient medium. The theoretical analysis of mirage effect generated by heated carbon nanotube thin film is presented both for gas and liquid. Excellent agreement is demonstrated through comparing the theoretical prediction with published experimental results. It is concluded from the theoretical prediction and experimental observation that the mirage effect is more likely to happen in liquid. The phase of deflected optical beam is also discussed and the method for measurement of thermal diffusivity of medium is theoretically verified. Furthermore, a method for measuring the refractive index of gas by detecting optical beam deflection is also presented in this paper.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [1] ; ;  [4]
  1. Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
  2. (China)
  3. USTC-CityU Joint Advanced Research Centre, Suzhou, Jiangsu 215123 (China)
  4. Department of Civil Engineering, University of Siegen, Paul-Bonatz-Str. 9-11, D-57076 Siegen (Germany)
Publication Date:
OSTI Identifier:
22304054
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; BEAMS; CARBON NANOTUBES; FORECASTING; HEAT TREATMENTS; REFRACTION; REFRACTIVE INDEX; TEMPERATURE GRADIENTS; THERMAL DIFFUSIVITY; THIN FILMS; VISIBLE RADIATION