Processing of thermal lens fringes by S-transform

Sarac Z. , Yerdelen S., Dursun A., Sarac H., Ecevit F. N.

OPTICS COMMUNICATIONS, vol.271, no.2, pp.349-352, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 271 Issue: 2
  • Publication Date: 2007
  • Doi Number: 10.1016/j.optcom.2006.10.028
  • Title of Journal : OPTICS COMMUNICATIONS
  • Page Numbers: pp.349-352


Thermal lens fringes are obtained by using Mach-Zehnder interferometer on the nile-blue/ethanol solution. S-Transform algorithm is used firstly to obtain local phase and refractive index change distributions by analyzing the thermal lens fringes. In the result, it was seen that this method showed a better result than that obtained by continuous wavelet transform in the previous work mentioned in the literature, since the frequency resolution and filtration effect of the S-transform method are better than other algorithms. (c) 2006 Elsevier B.V. All rights reserved.