High efficiency collection of photons emitted by a point source over a wide field-of-view (FoV) is crucial for many applications. Multi-scale optics over improved light collection by utilizing small optical components placed close to the optical source, while maintaining a wide FoV provided by conventional imaging optics. In this work, we demonstrate collection efficiency of 26% of photons emitted by a point-like source using a micromirror fabricated in silicon with no significant decrease in collection efficiency over a 10 mm object space.
@article{arxiv.1006.2188,
title = {Multi-scale Optics for Enhanced Light Collection from a Point Source},
author = {Rachel Noek and Caleb Knoernschild and Justin Migacz and Taehyun Kim and Peter Maunz and True Merrill and Harley Hayden and C. S. Pai and Jungsang Kim},
journal= {arXiv preprint arXiv:1006.2188},
year = {2015}
}