Video-rate, mid-infrared hyperspectral upconversion imaging

Mid-infrared upconversion spectroscopy

Infrared hyperspectral upconversion imaging using spatial object translation.

In this paper hyperspectral imaging in the mid-infrared wavelength region is realised using nonlinear frequency upconversion. The infrared light is converted to the near-infrared region for detection with a Si-based CCD camera. The object is translated in a predefined grid by motorized actuators and an image is recorded for each position. A sequence of such images is post-processed into a serie...

Upconversion based continuous-wave mid-infrared detection

We present theoretical and experimental work on upconversion based mid-wavelength infrared detection using silicon detectors without the need for cryogenic cooling. We consider both multi-spectral imaging and point spectroscopy targeting several specific applications. OCIS codes: (190.7220) Upconversion; (300.6340) Spectroscopy, infrared; (100.2960) Image analysis;

Single-chip, mid-infrared array for room temperature video rate imaging

CHENGZHI XIE,* MOHSIN AZIZ, VINCENZO PUSINO, ATA KHALID, MATTHEW STEER, IAIN G. THAYNE, MARC SOREL, AND DAVID R. S. CUMMING School of Engineering, University of Glasgow, Glasgow G128QQ, UK School of Physics & Astronomy, University of Southampton, Southampton SO171BJ, UK Centre for Electronic Warfare Information and Cyber, Cranfield University, Shrivenham SN68LA, UK *Corresponding author: chengz...

Efficient infrared imaging upconversion via quantum coherence

We show that quantum coherence can be used to achieve marked improvement in the efficiency of the process of infrared upconversion. In one particular example which we analyze in detail, we show that it is possible to convert infrared radiation at a wavelength of 100 mm to the visible with essentially 100% efficiency while maintaining diffraction-limited imaging of the infrared field. © 2000 Ame...