• Spectroscopy
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ORNL researchers invented a detector that uses photoacoustic waves to excite a vibratory sensor coated with unknown molecules. This invention can be used to identify these molecules and study solid, gas, or liquid samples. The device is an advance over other photoacoustic spectroscopy techniques, because it uses a vibratory sensor instead of a resonant chamber and microphone. This approach is …

Memsbased MEMS Based Calorimetric Spectroscopy (CalSpec) {Chemical And Biological Detection} CalSpec Concept And Background We have developed a novel micro_calorimetric spectroscopy technique that can be used for chemical and biological detection applications. This is a micro-electro-mechanical-systems (MEMS) based technique that provides detailed spectral information about the target species.…

A device that can detect chemicals at a distance was invented by ORNL researchers. This device is designed for identification of solid substances, but can also be used with liquids or gases. It is especially useful for the detection of explosive chemicals. In an open environment, it has been challenging to use photoacoustic methods due to sound wave distortion from environmental interference o…

Standoff Detection of Chemicals Using Rydberg Fingerprint Spectroscopy and Microwave Rayleigh Scattering The invention relates to a method for standoff trace chemical sensing. The basis for the technique is Rydberg Fingerprint Spectroscopy followed by microwave-based detection. In Rydberg Fingerprint Spectroscopy, target molecules are first excited to a Rydberg state (usually 3s) and then pass t…

: Fact Sheets
: Microwave, Plasma, Spectroscopy...

Photoacoustic Microcantilevers for Spectroscopy ORNL researchers invented a unique microcantilever design that can identify the chemical structure of minute sample materials using photoacoustic and photothermal spectroscopy. The design advances current technology, which cannot identify specific chemicals, and furthers the detection of vapors, cells, and tissues. The technology can also characteri…

General Full Acquisition High-Speed Spectroscopy for Scanning Probe Microscopy General Full Acquisition High-Speed Spectroscopy for Scanning Probe Microscopy Disclosure Number 201503568 Technology Summary The invention relates to scanning probe microscopy and more specifically to an ultra-fast spectroscopy technique to facilitate the observation of fast transient behaviors. Though com…

Advanced diagnostics for impact-flash spectroscopy on light-gas guns. About ECD Site Map Help FAQ Widget Contact Us Energy Citations Database ADOPT-A-DOC? Home Basic Search Fielded Search Alerts Document Availability This scientific information product was developed and is maintained by DOE'…

Laser-induced breakdown spectroscopy for soil carbon and nitrogen detection. Sensor for Detecting Carbon and Nitrogen in Soil Laser-induced Breakdown Spectroscopy (LIBS) Introduction Carbon sequestration in the terrestrial biosphere, or more specifically storage of carbon in soils, offers an attractive option for carbon management. Soil organic carbon represents an especially large pool of ca…

: Carbon, Laser, Nitrogen...

Broadband Infrared Standoff Spectroscopy with Interferometric Multilaser Pump-Probe Excitation-Detection Broadband Infrared Standoff Spectroscopy with Interferometric Multilaser Pump-Probe Excitation-Detection Disclosure Number 201503603 Technology Summary The invention relates to standoff detection of compounds and more specifically to machines and methods for detecting analytes on ta…

Standoff Spectroscopy Using a Conditioned Target Identifies Hazardous Materials at a Distance A safer method for the standoff (long distance) detection and identification of molecules on a surface has been invented by researchers at ORNL and the University of Tennessee. This invention avoids the necessity of close and potentially hazardous contact. It combines tunable infrared (IR) and ultraviole…

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