Artificial birefringence introduced by porosity in GaP
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URSACHI, Veaceslav, SYRBU, Nicolae, ALBU, Sergiu, ZALAMAI, Victor, TIGINYANU, Ion, BOYD, Robert W.. Artificial birefringence introduced by porosity in GaP. In: Semiconductor Science and Technology, 2005, vol. 20, pp. 745-748. ISSN 0268-1242. DOI: https://doi.org/10.1088/0268-1242/20/8/016
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Semiconductor Science and Technology
Volumul 20 / 2005 / ISSN 0268-1242

Artificial birefringence introduced by porosity in GaP

DOI:https://doi.org/10.1088/0268-1242/20/8/016

Pag. 745-748

Ursachi Veaceslav1, Syrbu Nicolae2, Albu Sergiu2, Zalamai Victor1, Tiginyanu Ion12, Boyd Robert W.3
 
1 Institute of Applied Physics, Academy of Sciences of Moldova,
2 Technical University of Moldova,
3 University of Rochester
 
 
Disponibil în IBN: 12 aprilie 2018


Rezumat

Porosity-induced birefringence in a GaP membrane is studied using a method based on the analysis of beats in unpolarized and polarized transmittance spectra as well as in angular dependence of optical spectra. Birefringence as high as ne - no ≤ 0.25 was measured in a porous GaP membrane with the degree of porosity close to 40%. The measured values of n e and no are compared with those calculated in the frame of effective medium theory for a GaP membrane with appropriate morphology.

Cuvinte-cheie
Anisotropy, Birefringence, Crystal growth from melt, opacity, porosity, scanning electron microscopy