학술논문
Spatial Measurement of Terahertz Fields by Encoding Probe Beam
Document Type
Conference
Source
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2020 45th International Conference on. :01-02 Nov, 2020
Subject
Language
ISSN
2162-2035
Abstract
Using computational algorithms to measure terahertz (THz) fields has been studied in the past decade. We develop a flexible and robust technique based on probe beam encoding. Our new approach does not require any additional manufacture, ancillary semiconductors or nanofilms. By imaging in the near-field, we can recover the THz field with 62 μ $m$ resolution, which is 15 times smaller than the central wavelength (940 μm).