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Radiant Energy > Invisible Radiant Energy Responsive Electric Signalling > Infrared Responsive > With Selection Of Plural Discrete Wavelengths Or Bands

With Selection Of Plural Discrete Wavelengths Or Bands

With Selection Of Plural Discrete Wavelengths Or Bands patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

02/13/14 - 20140042322 - Portable system and method for detecting drug materials
A portable system and method for detecting drug materials. A portable system may comprise at least one collection lens for collecting a plurality of interacted photons, a tunable filter for filtering the photons, and a SWIR detector for generating at least one SWIR data set representative of a first location...

11/21/13 - 20130306870 - Carbon nanotube compositions and methods of making and using same
Carbon nanotube compositions suitable for printing, methods of making carbon nanotube compositions, and substrates having a print thereon containing carbon nanotube compositions, and uses thereof. The carbon nanotubes of the compositions are individualized. The carbon nanotube compositions can be used in applications, such as document security....

10/31/13 - 20130284929 - Terahertz-wave element, terahertz-wave detecting device, terahertz time-domain spectroscopy system, and tomography apparatus
A terahertz-wave element includes a waveguide (2, 4, 5) that includes an electro-optic crystal and allows light to propagate therethrough, and a coupling member (7) that causes a terahertz wave to enter the waveguide (2, 4, 5). The propagation state of the light propagating through the waveguide (2, 4, 5)...

10/24/13 - 20130277560 - Infrared spectrometer with enhanced readout speed
A Fourier transform infrared spectrometer includes a beam splitter (22), end mirrors (21, 23), one of which may be scanned, and detectors (32) detecting the interfered light at the two outputs of a beam combiner (22), which may be the same optical element as the beam splitter (22). Time records...

09/26/13 - 20130248715 - System, method and computer software product for detection of ground anomalies using dual-filter infrared imaging
A system including a sensor to receive scattered light from a scene in a thermal infrared spectral region, a Modified Integrated Thermal (MIT) band filter to acquire MIT band data within a thermal detection bandwidth, a sub-band filter to acquire a first sub-band data within a first sub-band bandwidth which...

09/05/13 - 20130228687 - Spectral band-pass filter having high selectivity and controlled polarization
According to one aspect, the invention relates a spectral band-pass filter, which is optimized for the transmission of an incident wave at at least a first given central wavelength λ0, and which includes: a metal grating having a thickness (t) greater than approximately λ0/50 and including at least a first...

08/29/13 - 20130221222 - Vibrational spectroscopy for quantitative measurement of analytes
The present invention relates to systems and methods for the determination of the secondary structure composition of proteins using coherent two-dimensional infrared (2DIR) spectroscopy of backbone amide I vibrations (1580-1720 cm−1). Fractions of α-helix, β-sheet, and unassigned regions in globular proteins were determined by singular value decomposition using basis spectra...

08/22/13 - 20130214162 - System and method for detecting unknown materials using short wave infrared hyperspectral imaging
A system and method for analyzing unknown materials on surfaces including, but not limited to, chemical materials, biological materials, hazardous materials, drug materials, and non-threat materials using SWIR and/or extended range SWIR hyperspectral and spectroscopic techniques. A system comprising a collection optics, a tunable filter, and a first detector for...

08/15/13 - 20130206991 - System for surveillance of an area within which people move
A system for surveillance of a delimited area within which people move, wherein at least one hollow optical fibre is configured for extending through the area and is provided throughout its length with a plurality of holes that set an internal channel of the fibre in communication with the outside...

04/19/12 - 20120091345 - Methods and systems for optical focusing using negative index metamaterial
In an embodiment of methods and systems for optical focusing For laser guided seekers using negative index metamaterial, the methods and systems comprise a light focusing system comprising: a lens comprising a negative index metamaterial to focus at least one selected wavelength while defocusing other wavelengths, and a sensor upon...

12/22/11 - 20110309247 - Handheld infrared and raman measurement devices and methods
We disclose apparatus that includes: (a) an enclosure including an aperture; (b) a prism mounted in the enclosure so that a surface of the prism is exposed through the aperture; (c) an optical assembly contained within the enclosure, the optical assembly including a radiation source and a radiation detector, the...

11/10/11 - 20110272582 - Infrared light detector and production thereof
An infrared light detector has a first substrate having a sensor chip thereon that has an exposure surface that can be irradiated with infrared light, the sensor chip converting the incident infrared light into an electrical signal. The infrared light detector also has a second substrate having a window therein...

10/06/11 - 20110240861 - Room-temperature quantum noise limited spectrometry and methods of the same
In one embodiment, a heterodyne detection system for detecting light includes a first input aperture adapted for receiving first light from a scene input, a second input aperture adapted for receiving second light from a local oscillator input, a broadband local oscillator adapted for providing the second light to the...

02/03/11 - 20110024629 - Analysis of substrates having agents deposited thereon
Improved analytical, diagnostic, monitoring, and other methods (and their associated devices) for evaluating the extent of deposition of an agent onto a substrate are described. Exemplary methods may be used in the in the monitoring of the dental health of patients or in the fast, efficient screening and/or characterization of...

12/24/09 - 20090314942 - Method and apparatus for detecting organic materials and objects from multispectral reflected light
The present invention is a method of determining the presence of keratin, particularly hard keratin, such as exists in mammalian hair and feathers, and objects comprising such materials. The method of the present invention also includes displaying information derived from such a determination, as well as a measurement method followed...

05/07/09 - 20090114820 - Image sensor having a variable aperture and mono-color focal plane array for dual color detection
An image sensor is provided that includes a focal plane array; a cold shield having a top wall disposed over the focal plane array and defining an aperture operatively configured to be selectively switched between a first diameter and a second diameter that is larger than the first diameter; and...