Diffractive Retroreflector for Distributed Sensing
Optics
2025-10-17 v1
Abstract
We introduce a modified corner cube reflector that encodes information from passive optical sensors in its retroreflected diffraction pattern, enabling remote sensor-state measurement over a single-ended optical link. The design interferes a reference path and a sensor-modulated path within the retroreflected beam to produce an interferometric signal suitable for reading out phase and amplitude variations with a squarelaw camera. This enables sensor-state determination in arbitrarily oriented passive nodes, extending coherent interferometric read out of chemical, biological, and physical sensors to scalable, robust, and inert field deployments.
Cite
@article{arxiv.2510.14196,
title = {Diffractive Retroreflector for Distributed Sensing},
author = {Anne R. Kroo and Olav Solgaard},
journal= {arXiv preprint arXiv:2510.14196},
year = {2025}
}
Comments
10 figures, 7 pages