Abstract

We consider the application of a modified optical vortex coronagraph as a transmissometer. We find, through theory and simulation, that the rejection of scattered light benefits from increasing the charge number of the vortex masks in the image plane, and that a combination of a vortex mask and binary pinhole can outperform the pinhole alone.

Optical vortex coronagraph

Gregory Foo, David M. Palacios, and Grover A. Swartzlander
Opt. Lett. 30(24) 3308-3310 (2005)

Generation of optical vortex lattices by in-line phase modulation with partially coherent light

Allarakha Shikder and Naveen K. Nishchal
J. Opt. Soc. Am. A 40(6) 1231-1236 (2023)

Field stop diffraction and sampling effects in apodized pupil Lyot coronagraphs

Scott D. Will and James R. Fienup
J. Opt. Soc. Am. A 37(4) 629-642 (2020)

Image reconstruction for low cost spatial light interference microscopy with fixed and arbitrary phase modulation

Yang Pan, Zachary J. Smith, and Kaiqin Chu
J. Opt. Soc. Am. A 40(6) 1155-1164 (2023)

Vector vortex coronagraphy for exoplanet detection with spatially variant diffractive waveplates

Eugene Serabyn, Camilo Mejia Prada, Pin Chen, and Dimitri Mawet
J. Opt. Soc. Am. B 36(5) D13-D19 (2019)