Giant visible and infrared light attenuation effect in nanostructured narrow-bandgap glasses | Zendy

R. Golovchak | Zendy; Yaroslav Shpotyuk | Zendy; J. Szlęzak | Zendy; Andrzej Dziedzic | Zendy; A. Ingram | Zendy; J. Cebulski | Zendy

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Giant visible and infrared light attenuation effect in nanostructured narrow-bandgap glasses

Author(s) -

R. Golovchak,

Yaroslav Shpotyuk,

J. Szlęzak,

Andrzej Dziedzic,

A. Ingram,

J. Cebulski

Publication year - 2018

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.43.000387

Subject(s) - materials science , opacity , attenuation coefficient , infrared , attenuation , band gap , radiation , millimeter , conductivity , silicate glass , silicon , optics , optoelectronics , composite material , chemistry , physics

A unique effect of Bi on the optical and electrical properties of mixed Ga-containing Ge-Se and Ge-Te glasses is discovered. It is shown that glass with a low Bi content is completely transparent in a 3-16 μm spectral range, while the glass with a slightly higher Bi content possesses a large (>10 db/mm) attenuation coefficient, making a ∼millimeter thick glass sample fully opaque to VIS-IR radiation. Despite this contrast, both types of glass are found to retain their semiconducting properties, the DC conductivity at room temperature, σ DC ∼10 -3 S/m, being comparable to that of silicon.

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