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      https://www.ias.ac.in/article/fulltext/pram/095/0142

    • Keywords

       

      Narrow band-pass birefringent filter; polariser; retarder; laser.

    • Abstract

       

      In this communication, the construction and transmission characteristics of a narrow band-pass birefringent filter have been investigated. The filter is formed by a combination of two sets of retarders with a polariser in between, and two linear polarisers placed at the two extreme ends. The sets of retarders are chosen to be a cascaded fan-type Solc filter having two different kinds of retardations, resulting in filtering characteristics better than those birefringent filters proposed for the visible range. The performance of this proposed filter is better in terms of effective suppression of side peak amplitudes as well as reduction of bandwidth with less number of waveplates. This birefringent filter can be used inside a linear resonator.

    • Author Affiliations

       

      NILANJAN MUKHOPADHYAY1 ARIJIT SAHA2 KALLOL BHATTACHARYA3

      1. Department of Electronics and Communication Engineering, Global Institute of Management and Technology, Krishnagar, Nadia 741 102, India
      2. Department of Electronics and CommunicationEngineering, B. P. Poddar Institute of Management andTechnology, 137, VIP Road, Kolkata 700 052, India
      3. Department of Applied Optics and Photonics, University of Calcutta, JD-2, Sector 3, Salt Lake City, Kolkata 700 098, India
    • Dates

       
  • Pramana – Journal of Physics | News

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