King Abdulaziz City for Science and Technology

The State Scientific Institution "Institute of Chemistry of New Materials of National Academy of Sciences of Belarus"

The State Scientific Institution "b.i. Stepanov Institute of Physics of National Academy of Sciences of Belarus"

Alexander Vasilevich Agashkov

Mohammed Binhussain

Nikolai Stanislavovich Kazak

Vladimir Enokovich Agabekov

Marzook Saleh O Alshammari

Marzook Saleh Alshammari

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.

Differential polarization interferometer

Growing community of inventors

Minsk, Belarus

Alexander Vasilevich Agashkov