Terahertz diffractive structures for compact in-reflection inspection setup

Agnieszka Siemion , Paweł Komorowski , Mateusz Józef Surma , Izabela Ducin , Piotr Sobotka , M. Walczakowski , E. Czerwińska

Abstract

Two diffractive optical elements are used to create a compact raster THz scanning setup in reflective configuration. The first one focuses the radiation into the small focal spot on the sample, while the second one collects reflected radiation and focuses it on the detector. To assure small size of the setup and large apertures of optical elements, structures work in the off-axis geometry. Thus, the focal spot is formed 100 mm after and 60 mm below the optical axis of the element, which measures 75 mm in diameter. The designed iterative algorithm allows further minimization of these values.
Author Agnieszka Siemion (FP / OPD)
Agnieszka Siemion,,
- Optics and Photonics Division
, Paweł Komorowski (FEIT / MO)
Paweł Komorowski,,
- The Institute of Microelectronics and Optoelectronics
, Mateusz Józef Surma (FP)
Mateusz Józef Surma,,
- Faculty of Physics
, Izabela Ducin (FP / OPD)
Izabela Ducin,,
- Optics and Photonics Division
, Piotr Sobotka (FP / OPD)
Piotr Sobotka,,
- Optics and Photonics Division
, M. Walczakowski - [Wojskowa Akademia Techniczna]
M. Walczakowski,,
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, E. Czerwińska - [Wojskowa Akademia Techniczna]
E. Czerwińska,,
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Journal seriesOptics Express, ISSN 1094-4087
Issue year2020
Vol28
No1
Pages715-723
ASJC Classification3107 Atomic and Molecular Physics, and Optics
DOIDOI:10.1364/OE.382272
URL https://www.osapublishing.org/oe/abstract.cfm?uri=oe-28-1-715
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 02-07-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.567; WoS Impact Factor: 2018 = 3.561 (2) - 2018=3.531 (5)
Citation count*1 (2020-09-18)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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