The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2017
Filed:
Nov. 01, 2015
King Abdul Aziz City for Science and Technology, Riyadh, SA;
B.i. Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Minsk, BY;
Institute of Chemistry of New Materials of National Academy of Sciences of Belarus, Minsk, BY;
Alexander Vasilevich Agashkov, Minsk, BY;
Nikolai Stanislavovich Kazak, Minsk, BY;
Vladimir Enokovich Agabekov, Minsk, BY;
Marzook Saleh O Alshammari, Riyadh, SA;
Mohammed A Binhussain, Riyadh, SA;
King Abdulaziz City for Science and Technology-KACST, Riyadh, SA;
Abstract
A differential polarization interferometer is provided. An interferometer performs direct measurement of phase shift of a light wave passed under an arbitrary angle through a sample composed of a transparent substrate holding a thin deposited test film, for metamaterial testing. An example apparatus has a laser source and a first polarizer, and two optically connected arms. A first arm creates orthogonally polarized components of a single output beam for a broadband non-polarizing beam splitter. A second arm has a controllable phase retarder to introduce a phase shift into one polarization component of the reflected single output beam, and a second polarizer to equalize and mix the polarization components of the reflected single output beam. This transforms the reflected single output beam into a beam resulting from interference of polarization components of the reflected single output beam. A photodetector transforms an intensity of the beam into an electric signal for output.