Imaging with a 90 frames/s microbolometer focal plane array and high-power terahertz free electron laser

Journal Article · Mon Mar 31 00:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2898138· OSTI ID:21120664

Dem'yanenko, M A; Esaev, D G ^[1]; Knyazev, B A; Vinokurov, N A ^[2]; Kulipanov, G N ^[2]

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1. Rzhanov Institute of Semiconductor Physics SB RAS, 630090 Novosibirsk (Russian Federation)
2. Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk (Russian Federation)

An uncooled microbolometer focal plane array (FPA) has been developed and used for imaging of objects illuminated by monochromatic coherent radiation of a free electron laser tunable in the range of 1.25-2.5 THz. A sensitivity threshold of 1.3x10{sup -3} W/cm{sup 2} was obtained for the FPA with a homemade absolute interferometric power meter. Videos up to 90 frames/s were recorded in both transmission and reflection/scattering modes. When objects were illuminated by laser radiation scattered by a rough metal surface, speckled images were observed. Good quality terahertz images were achieved through the fast rotation of the scatterer.

• OSTI ID: 21120664
• Journal Information: Applied Physics Letters, Vol. 92, Issue 13; Other Information: DOI: 10.1063/1.2898138; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOLOMETERS
COHERENT RADIATION
FREE ELECTRON LASERS
IMAGES
LASER RADIATION
METALS
MONOCHROMATIC RADIATION
POWER METERS
REFLECTION
ROTATION
SCATTERING
THZ RANGE 01-100