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  4. Experimental evidence of Bloch surface waves on photonic crystals with thin-film LiNbO3 as a top layer
 
research article

Experimental evidence of Bloch surface waves on photonic crystals with thin-film LiNbO3 as a top layer

Kovalevich, T.
•
Belharet, D.
•
Robert, L.
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2017
Photonics Research

Strong nonlinear, electro-optical, and thermo-optical properties of lithium niobate (LN) have gained much attention. However, the implementation of LiNbO3 in real devices is not a trivial task due to difficulties in manufacturing and handling thin-film LN. In this study, we investigate an optical device where the Bloch surface wave (BSW) propagates on the thin-film LN to unlock its properties. First, access to the LN film from air (or open space) is important to exploit its properties. Second, for sustaining the BSW, one-dimensional photonic crystal (1DPhC) is necessary to be fabricated under the thin-film LN. We consider two material platforms to realize such a device: bulk LN and commercial thin-film LN. Clear reflectance dips observed in far-field measurements demonstrate the propagation of BSWs on top of the LN surface of the designed 1DPhCs.

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Type
research article
DOI
10.1364/PRJ.5.000649
Web of Science ID

WOS:000416860400028

Author(s)
Kovalevich, T.
Belharet, D.
Robert, L.
Kim, M.-S.  
Herzig, Hans Peter  
Grosjean, T.
Bernal, Maria-Pilar
Date Issued

2017

Publisher

Optical Soc Amer

Published in
Photonics Research
Volume

5

Issue

6

Start page

649

End page

653

Subjects

Thin films

•

Lithium niobate

•

Photonic crystals

•

Surface waves

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
November 20, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/142228
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