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1. WO2006102181 - REAL-TIME, CONTINUOUS-WAVE TERAHERTZ IMAGING USING A MICROBOLOMETER FOCAL-PLANE ARRAY

Publication Number WO/2006/102181
Publication Date 28.09.2006
International Application No. PCT/US2006/009919
International Filing Date 20.03.2006
IPC
G01N 21/35 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
G01J 5/20 2006.01
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
5Radiation pyrometry
10using electric radiation detectors
20using resistors, thermistors or semiconductors sensitive to radiation
G01N 21/31 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
CPC
G01N 21/3151
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
314with comparison of measurements at specific and non-specific wavelengths
3151using two sources of radiation of different wavelengths
G01N 21/3563
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3563for analysing solids; Preparation of samples therefor
G01N 21/3581
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3581using far infra-red light; using Terahertz radiation
Applicants
  • MASSACHUSETTS INSTITUTE OF TECHNOLOGY (MIT) [US]/[US] (AllExceptUS)
  • HU, Qing [US]/[US] (UsOnly)
  • LEE, Alan, Wei, Min [US]/[US] (UsOnly)
Inventors
  • HU, Qing
  • LEE, Alan, Wei, Min
Agents
  • ENGELLENNER, Thomas, J.
Priority Data
60/663,90221.03.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REAL-TIME, CONTINUOUS-WAVE TERAHERTZ IMAGING USING A MICROBOLOMETER FOCAL-PLANE ARRAY
(FR) IMAGERIE TERAHERTZ, D'ONDE CONTINUE, EN TEMPS REEL AU MOYEN D'UN MICROBOLOMETRE A RESEAU PLAN FOCAL
Abstract
(EN)
The present invention generally provides a terahertz (THz) imaging system that includes a source for generating radiation (e.g., a quantum cascade laser) having one or more frequencies in a range of about 0.1 THz to about 10 THz, and a two-dimensional detector array comprising a plurality of radiation detecting elements that are capable of detecting radiation in that frequency range. An optical system directs radiation from the source to an object to be imaged. The detector array detects at least a portion of the radiation transmitted through the object (or reflected by the object) so as to form a THz image of that object.
(FR)
La présente invention concerne un système d'imagerie térahertz (THz) qui comprend une source de génération de rayonnements (par exemple, un laser à cascade quantique) possédant au moins une fréquence située dans une gamme comprise entre environ 0,1 THz et environ 10 THz et au moins un réseau de détecteurs bidimensionnels possédant une pluralité d'éléments de détection de rayonnements capables de détecter des rayonnements dans cette gamme de fréquences. Un système optique permet de diriger des rayonnements de la source vers un objet à imager. Le réseau de détecteurs permet de détecter au moins une partie des rayonnements transmis à travers l'objet (ou réfléchis par l'objet), de manière à former une image THz de cet objet.
Also published as
EP6738906
Latest bibliographic data on file with the International Bureau