The optical filter is critical in many applications requiring wide-angle imaging perception.
However, the transmission curve of the typical optical filter will change at an oblique incident …

Optical-filter-based chemical sensors have the potential to dramatically alter the field of
hazardous materials sensing. Such devices could be constructed using inexpensive …

Passive infrared (IR) systems enable rapid detection of chemical vapors but are limited by
size, weight, cost, and power. Previously, the authors reported a novel passive sensor that …

This paper describes the application of a human color vision approach to infrared (IR)
chemical sensing for the discrimination between multiple explosive materials deposited on …

Cutaneous malignant melanoma is the deadliest and most aggressive form of skin cancer
and is fatal if left untreated. Currently, the most commonly used technique to detect …

An optical-filter-based sensor that was designed to mimic human color vision was recently
developed. This sensor uses three mid-infrared optical filters to discriminate between …

Color vision results from the interaction of retinal photopigments with reflected or transmitted
visible light. The International Commission on Illumination (CIE) developed the CIE color …

Detection of concealed hazardous materials is a pressing need for the global defense
community. To address this need, the development of reliable and readily-deployable …

Here we describe the performance of a recently developed infrared-based chemical sensor
for detecting liquid chemical hazards on surfaces at stand-off distances. This sensor uses …

The proliferation of chemical threats in the modern world requires the development of new,
low cost, flexible sensors, with the ability to be widely deployed. Ideally these sensors will be …