Analysis of Fizeau wedge with a non-air gap by plane wave expansion

Elena Stoykova; Margarita Deneva; Marin Nenchev

doi:10.1117/12.2527464

3 October 2019 Analysis of Fizeau wedge with a non-air gap by plane wave expansion

Elena Stoykova, Margarita Deneva, Marin Nenchev

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112071V (2019) https://doi.org/10.1117/12.2527464
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

The optical interferential wedge or Fizeau wedge (FW) is a useful optical element with various applications in optical metrology, spectroscopy and laser technique. Various FW applications require knowledge of its response to illumination by a laser beam with an arbitrary wavefront. Recently, we applied the plane wave expansion method to study transmission and reflection of an air-gap FW under illumination with a Gaussian beam. The approach is based on the angular spectrum of the beam and the known FW response to illumination with a plane wave. In this study, we adapt this approach for the more general and more frequently encountered case of a FW with a non-air gap. We developed an approximate algorithm, which is applicable at small incidence angles to wedges with refractive indices different from 1 and illuminating beams with arbitrary amplitude and phase distributions. Comparison to the experiment is also provided.

Citation Download Citation

Elena Stoykova, Margarita Deneva, and Marin Nenchev "Analysis of Fizeau wedge with a non-air gap by plane wave expansion", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071V (3 October 2019); https://doi.org/10.1117/12.2527464

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