Binary doe with elongated focal depth to focus terahertz free electron laser radiation (novofel)
Agafonov A.N., Volodkin B.O., Kaveev A.K., Kachalov D.G., Knyazev B.A., Kropotov G.I., Tukmakov K.N., Pavelyev V.S., Tsypishka D.I., Choporova Yu.Yu.

 

Samara State Aerospace University,
Tydex LLC, Saint-Petersburg,
Budker Institute of Nuclear Physics SB RAS,
Novosibirsk State University,
Image Processing Systems Institute, Russian Academy of Sciences

 

DOI: 10.18287/0134-2452-2015-39-1-58-63

Full text of article: Russian language.

Abstract:
A binary silicon diffractive optical element (DOE) focusing laser radiation onto an axial segment (or a DOE with elongated focal depth) for the terahertz spectral range has been designed and characterized using terahertz radiation of the Novosibirsk Free Electron Laser (NovoFEL).

Keywords:
diffractive optics, free electron lasers, terahertz and far infrared radiation, axial light segment.

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