Modifying light propagation in planar waveguides with cladding liquid crystals

Gil Valverde, Manuel and Caño Garcia, Manuel and Otón Martínez, Eva and Geday, Morten Andreas and Quintana Arregui, Patxi Xabier and Oton Sánchez, José Manuel (2016). Modifying light propagation in planar waveguides with cladding liquid crystals. In: "COST Action IC1208. Integrating devices and materials: A challenge for new instrumentationin ICT. IC1208 Joint 8th Management Committee Meeting (MCM8)", 08/09/2016 - 09/09/2016, Varsovia. p. 1.

Description

Title: Modifying light propagation in planar waveguides with cladding liquid crystals
Author/s:
  • Gil Valverde, Manuel
  • Caño Garcia, Manuel
  • Otón Martínez, Eva
  • Geday, Morten Andreas
  • Quintana Arregui, Patxi Xabier
  • Oton Sánchez, José Manuel
Item Type: Presentation at Congress or Conference (Article)
Event Title: COST Action IC1208. Integrating devices and materials: A challenge for new instrumentationin ICT. IC1208 Joint 8th Management Committee Meeting (MCM8)
Event Dates: 08/09/2016 - 09/09/2016
Event Location: Varsovia
Title of Book: Proceedings of COST Action IC1208. Integrating devices and materials: A challenge for new instrumentationin ICT. IC1208 Joint 8th Management Committee Meeting (MCM8)
Date: September 2016
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Liquid crystal devices are increasingly being used in non-display applications to manufacture small devices that can be driven by low voltage electronics. LCs are low cost, light weight and avoid using mechanical components. A wide number of interesting applications involve the use of LCs for phase modulation of light. This can be done with light propagating through the LC itself or rather with light propagating in a waveguide (WG) where sections of its cladding are filled with LC that interacts with the light?s evanescent field. Several device families based on this general outline are being tested in our group. The devices can be roughly classified into two categories. The first group consists of WGs having a width much larger than the light wavelength (Fig. 1), therefore behaving as 1D waveguides. In these structures, effective beam steering can be achieved using pixelated electrodes having specific shapes. Beam steering has been demonstrated in IR beams [1] using silicon substrates. In our laboratory, steering of visible light is tested employing, besides silicon substrates, ITO-coated glass substrates with a high-index guiding layer of SU-8.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2013-47342-C2-1-RUnspecifiedUnspecifiedUnspecified

More information

Item ID: 48289
DC Identifier: http://oa.upm.es/48289/
OAI Identifier: oai:oa.upm.es:48289
Deposited by: Memoria Investigacion
Deposited on: 27 Nov 2017 18:01
Last Modified: 04 Mar 2019 11:32
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