THz Bolometer Detectors

This chapter gives a review of bolometer use for THz detection, drawing specific attention to such sensors for THz imaging. First, the detection principles are presented highlighting the technological solutions that ensure the main functions of such thermal sensors. The two last sections are devoted to the review of technological approaches that are encountered depending on the operation temperature. Examples of developed cooled bolometer arrays are reviewed with emphasis on illustrating different approaches applied to perform the main bolometer functions. Finally, a focus is made on uncooled array of microbolometers, that is the field of R&D activity of the author.

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