Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence

In the previous works, the visibility of BN is improved by carefully selecting the thickness of the oxide layer and choosing the appropriate incident wavelength. In our study, we show that it can be further improved by adjusting the incident angle at the pseudo-Brewster configuration. We analyze the...

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Main Authors: Simon, Rhenish C., Hermosa, Nathaniel D.
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Published: Animo Repository 2020
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Online Access:https://animorepository.dlsu.edu.ph/faculty_research/11582
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Institution: De La Salle University
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spelling oai:animorepository.dlsu.edu.ph:faculty_research-115542024-03-25T23:21:30Z Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence Simon, Rhenish C. Hermosa, Nathaniel D. In the previous works, the visibility of BN is improved by carefully selecting the thickness of the oxide layer and choosing the appropriate incident wavelength. In our study, we show that it can be further improved by adjusting the incident angle at the pseudo-Brewster configuration. We analyze the visibility of BN monolayers using two common models for flat 2D materials: the thin film and the perfect sheet models. We show that the visibility magnitude of the BN on SiO2/Si under 594-nm illumination at pseudo-Brewster incidence is better than the the equivalent visibility magnitude taken at normal incidence. The estimated increase factors for the magnitude of the BN visibility are −11.6 when the thin film model is used, and +4.6 for the perfect sheet model. This implies that the two models cannot be used as an alternative for each other when calculating for visibility at non-zero incident angle. This results can be used as a standpoint for experimental confirmation. 2020-10-01T07:00:00Z text https://animorepository.dlsu.edu.ph/faculty_research/11582 Faculty Research Work Animo Repository Interfaces (Physical sciences) Two-dimensional materials Thin films Boron nitride Physics
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
topic Interfaces (Physical sciences)
Two-dimensional materials
Thin films
Boron nitride
Physics
spellingShingle Interfaces (Physical sciences)
Two-dimensional materials
Thin films
Boron nitride
Physics
Simon, Rhenish C.
Hermosa, Nathaniel D.
Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
description In the previous works, the visibility of BN is improved by carefully selecting the thickness of the oxide layer and choosing the appropriate incident wavelength. In our study, we show that it can be further improved by adjusting the incident angle at the pseudo-Brewster configuration. We analyze the visibility of BN monolayers using two common models for flat 2D materials: the thin film and the perfect sheet models. We show that the visibility magnitude of the BN on SiO2/Si under 594-nm illumination at pseudo-Brewster incidence is better than the the equivalent visibility magnitude taken at normal incidence. The estimated increase factors for the magnitude of the BN visibility are −11.6 when the thin film model is used, and +4.6 for the perfect sheet model. This implies that the two models cannot be used as an alternative for each other when calculating for visibility at non-zero incident angle. This results can be used as a standpoint for experimental confirmation.
format text
author Simon, Rhenish C.
Hermosa, Nathaniel D.
author_facet Simon, Rhenish C.
Hermosa, Nathaniel D.
author_sort Simon, Rhenish C.
title Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
title_short Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
title_full Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
title_fullStr Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
title_full_unstemmed Improved visibility of boron nitride on oxidized silicon substrates at pseudo-Brewster incidence
title_sort improved visibility of boron nitride on oxidized silicon substrates at pseudo-brewster incidence
publisher Animo Repository
publishDate 2020
url https://animorepository.dlsu.edu.ph/faculty_research/11582
_version_ 1795381022687232000