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Title: Ultraviolet-visible optical isolators based on CeF{sub 3} Faraday rotator

The first ultraviolet (UV) and visible optical isolators based on CeF{sub 3} are demonstrated. CeF{sub 3} possesses unique properties as Faraday rotator for the UV-visible wavelength region: a wide transparency range (wavelength of >300 nm) and an outstanding Verdet constant. In contrast, currently used terbium-gallium garnets and magneto-optical glasses possess a low transparency in the visible and a small Verdet constant in the UV, respectively. The optical isolator prototypes consist of a CeF{sub 3} rod, a single ring magnet, and a couple of beam splitters. The ring magnets have been designed to guarantee a homogeneous magnetic field; for it, numerical simulations have been carried out. The two prototypes are very compact and operate in the UV at 355 and in the visible at 405 nm, respectively. The performance of these devices indicates the high potential of CeF{sub 3} as a new UV-visible Faraday rotator, specially for shorter wavelengths where at present there are no optical isolators available.
Authors:
;  [1] ;  [2]
  1. National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)
  2. ETSI de Caminos, Universidad Politécnica de Madrid, 28040 Madrid (Spain)
Publication Date:
OSTI Identifier:
22490704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAMS; CERIUM FLUORIDES; COMPUTERIZED SIMULATION; GALLIUM; GARNETS; MAGNETIC FIELDS; MAGNETS; OPACITY; PERFORMANCE; TERBIUM; ULTRAVIOLET RADIATION; WAVELENGTHS