High signal-to-noise-ratio electro-optical terahertz imaging system based on an optical demodulating detector array

Opt Lett. 2009 Nov 1;34(21):3424-6. doi: 10.1364/OL.34.003424.

Abstract

We present a 64x48 pixel 2D electro-optical terahertz (THz) imaging system using a photonic mixing device time-of-flight camera as an optical demodulating detector array. The combination of electro-optic detection with a time-of-flight camera increases sensitivity drastically, enabling the use of a nonamplified laser source for high-resolution real-time THz electro-optic imaging.