Methods and apparatus for detecting variations in electromagnetic fields, in particular,
terahertz (THz) electromagnetic fields, are provided. The methods and apparatus employ …

(57) ABSTRACT A hyperspectral sensor or imager comprising a laser for illu minating a
scene and a detector for detecting light emitted by the laser and transmitted through the …

A method for inspecting a package to identify an object concealed in the package includes
passing two beams of THz-radiation through the package. The frequency of THz radiation in …

An apparatus for detecting information on an object includes an irradiating unit, a detecting
unit, and an information-obtaining unit. The irradiating unit irradiates the object with …

An inspection System and methods for inspecting items using terahertz radiation that may be
used to detect contra band (eg, explosives, weapons and drugs) within items under …

To provide an apparatus capable obtaining a temporal waveform of terahertz waves
transmitted through or reflected by a sample in a set region. A delay unit is configured to …

Methods and apparatus are provided employing rapid scanning continuous wave terahertz
spectroscopy and imaging for the non-destructive evaluation of materials such as animal …

A terahertz scanning reflectometer system is described herein for in-situ measurement of
polymer coating thickness, semiconductor wafer's surface sub-surface inspection in a non …

An image capture device 1001 captures an image by using a terahertz wave and includes a
generating unit 112 that includes a plurality of generation elements each of which generates …

0001. This application is a continuation-in-part of US patent application Ser. No. 11/085,859,
filed Mar. 22, 2005, and is also a continuation-in-part of US patent application Ser. No. 1 …