Holographic grating based high sensitivity device for refractive index measurements | Zendy

Domenico Donisi | Zendy; Roberto Caputo | Zendy; Giovanni Cennini | Zendy

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Holographic grating based high sensitivity device for refractive index measurements

Author(s) -

Domenico Donisi,

Roberto Caputo,

Giovanni Cennini

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.015236

Subject(s) - optics , refractive index , materials science , diffraction efficiency , grating , holography , prism , sensitivity (control systems) , diffraction grating , diffraction , optoelectronics , physics , electronic engineering , engineering

In this communication, we show how a short-pitch diffractive structure can be used as a low-cost high sensitivity device for refractive index measurements with sensitivity of 10(-2). The device consists of a photo-resist diffraction grating put in optical contact with a hollow prism used as a container for a test material. Its main advantage is the possibility to monitor the composition of solids, fluids and gases in real time. Knowledge of optical parameters of a system with high accuracy can be vital when working in the biological/medical field.

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