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arXiv · 1711.03266

Angular Lens

Rishabh Sahu·Swati Chaudhary·Kedar Khare·Mishkatul Bhattacharya·Harshawardhan Wanare·Anand Kumar Jha
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Abstract

We propose a single phase-only optical element that transforms different orbital angular momentum (OAM) modes into localized spots at separated angular positions on a transverse plane. We refer to this element as an angular lens since it separates out OAM modes in a manner analogous to how a converging lens separates out transverse wave-vector modes at the focal plane. We also simulate the proposed angular lens using a spatial light modulator and experimentally demonstrate its working. Our work can have important implications for OAM-based classical and quantum communication applications.

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Rishabh Sahu, Swati Chaudhary, Kedar Khare, Mishkatul Bhattacharya, Harshawardhan Wanare, Anand Kumar Jha. 2017-11-09. Angular Lens. https://doi.org/10.1364/oe.26.008709

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