Ion Optics, Inc.

Flir Detection, Inc.

Peter G Loges

James T Daly

Robert Deans

Edward A Johnson

Irina Puscasu

Lawrence F Hancock

Matthew Szabo

William A McDaniel

Mark P McNeal

Kateri E Paul

V Mark Villafuerte

Christopher J Von Benken

Embodiments described herein related to devices and methods for the collection and/or determination of analytes, such as illicit substances including military explosives, explosives, and precursors thereof. In some cases, the device may be a disposable device that incorporates highly efficient sample collection in combination with microfluidic-based chemical analysis resulting in the rapid detection and identification of unknown materials. In some cases, multiple colorimetric detection chemistries may be employed, and the resulting 'barcode' of color changes can be used to positively identify the presence and/or identity of the analyte.

Device and methods for detection of analytes including use of a colorimetric barcode

A radiation source including a base, a curved reflector attached to the base, pins passing through the base and within the reflector, and a filament of high emissivity material helically wound about the pins and having opposing ends electrically connected to the pins so that upon passage of electrical energy through the filament, the filament becomes electrically heated and emits infrared radiation.

Filament for radiation source

An absorption spectroscopy apparatus including a sample cell having a central axis, and a side wall coaxially positioned about the axis. The side wall defines a generally circular cross-section of the cell as taken along a plane extending perpendicular to the axis, wherein the generally circular cross-section of the sample cell has an average radius. The side wall includes a plurality of light reflective segments arrayed about the axis, wherein each reflective segment has a cross-section taken along a plane extending perpendicular to the axis of the cell that is concave with respect to the axis. The concave cross-section of each segment has an average radius that is unequal to the average radius of the generally circular cross-section of the sample cell. Among other aspects and advantages, the apparatus of the present disclosure is able to use incoherent, non-collimated light sources while maintaining high optical throughput efficiencies.

Absorption spectroscopy apparatus and method

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Natick, MA, United States of America

Peter G Loges