Hyperspectral terahertz microscopy via nonlinear ghost imaging
Optics
2020-02-20 v1 Instrumentation and Detectors
Abstract
We experimentally demonstrate Time-Resolved Nonlinear Ghost Imaging and its ability to perform hyperspectral imaging in difficult-to-access wavelength regions, such as the Terahertz domain. We operate by combining nonlinear quadratic sparse generation and nonlinear detection in the Fourier plane. We demonstrate that traditional time-slice approaches are prone to essential limitations in near-field imaging due to space-time coupling, which is overcome by our technique. As a proof-of-concept of our implementation, we show that we can provide experimental access to hyperspectral images completely unrecoverable through standard fixed-time methods.
Cite
@article{arxiv.1910.11259,
title = {Hyperspectral terahertz microscopy via nonlinear ghost imaging},
author = {Luana Olivieri and Juan S. Totero Gongora and Luke Peters and Vittorio Cecconi and Antonio Cutrona and Jacob Tunesi and Robyn Tucker and Alessia Pasquazi and Marco Peccianti},
journal= {arXiv preprint arXiv:1910.11259},
year = {2020}
}