Ultra-high dynamic range electro-optic sampling for detecting millimeter and sub-millimeter radiation.

ABSTRACT: Time-domain spectroscopy using coherent millimeter and sub-millimeter radiation (also known as terahertz radiation) is rapidly expanding its application, owing greatly to the remarkable advances in generating and detecting such radiation. However, many current techniques for coherent terahertz detection have limited dynamic range, thus making it difficult to perform some basic experiments that need to directly compare strong and weak terahertz signals. Here, we propose and demonstrate a novel technique based on cross-polarized spectral-domain interferometry to achieve ultra-high dynamic range electro-optic sampling measurement of coherent millimeter and sub-millimeter radiation. In our scheme, we exploit the birefringence in a single-mode polarization maintaining fiber in order to measure

SUBMITTER: Ibrahim A 

PROVIDER: S-EPMC4791559 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature