Intrinsic and photo-induced optical properties of photoaligning azo-based materials coupled with liquid crystal systems
Intrinsic and photo-induced optical properties of photoaligning azo-based materials coupled with liquid crystal systems
Photoaligning azobenzene-based PAAD materials can show strong photoresponse without a surface relief pattern. We report an experimental investigation of PAADs optical properties, such as complex refractive indices and optically induced birefringence. Formation of photoinduced phase gratings in 20-50 nm, thin PAAD layers is demonstrated, with a strong dependence of diffraction on the probe beam polarization. The light induced diffraction in liquid crystal systems coupled with PAAD films is also studied. We demonstrate a stable and strong diffraction grating, which can be rewritten by illumination or switched off by reorienting the liquid crystals with a bias voltage.
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Mavrona, Eleni
bd9ffcf5-ba1f-4089-8846-eb550f63f425
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Gill, Jordan, Ronald Ewan
308dc268-ffc7-411b-80ec-761e3c0e55bc
D'alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Apostolopoulos, Vasileios
8a898740-4c71-4040-a577-9b9d70530b4d
Tabiryan, Nelson
dca398f3-ef0d-4cc2-885c-ffbdd45a8ee6
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
19 September 2017
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Mavrona, Eleni
bd9ffcf5-ba1f-4089-8846-eb550f63f425
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Gill, Jordan, Ronald Ewan
308dc268-ffc7-411b-80ec-761e3c0e55bc
D'alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Apostolopoulos, Vasileios
8a898740-4c71-4040-a577-9b9d70530b4d
Tabiryan, Nelson
dca398f3-ef0d-4cc2-885c-ffbdd45a8ee6
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Podoliak, Nina, Mavrona, Eleni, Mailis, Sakellaris, Gill, Jordan, Ronald Ewan, D'alessandro, Giampaolo, Apostolopoulos, Vasileios, Tabiryan, Nelson and Kaczmarek, Malgosia
(2017)
Intrinsic and photo-induced optical properties of photoaligning azo-based materials coupled with liquid crystal systems.
In Proceedings Volume 10361, Liquid Crystals XXI.
SPIE..
(doi:10.1117/12.2273928).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Photoaligning azobenzene-based PAAD materials can show strong photoresponse without a surface relief pattern. We report an experimental investigation of PAADs optical properties, such as complex refractive indices and optically induced birefringence. Formation of photoinduced phase gratings in 20-50 nm, thin PAAD layers is demonstrated, with a strong dependence of diffraction on the probe beam polarization. The light induced diffraction in liquid crystal systems coupled with PAAD films is also studied. We demonstrate a stable and strong diffraction grating, which can be rewritten by illumination or switched off by reorienting the liquid crystals with a bias voltage.
Text
SPIE abstract_PAAD
- Accepted Manuscript
More information
Accepted/In Press date: 1 January 2017
Published date: 19 September 2017
Venue - Dates:
SPIE Optics + Photonics: Liquid Crystals XXI, San Diego Convention Center, San Diego, California, United States, 2017-08-06 - 2017-08-10
Identifiers
Local EPrints ID: 413798
URI: http://eprints.soton.ac.uk/id/eprint/413798
PURE UUID: 99ce0d5d-4393-4d44-9eca-dd52e612cdc3
Catalogue record
Date deposited: 06 Sep 2017 16:31
Last modified: 17 Mar 2024 02:41
Export record
Altmetrics
Contributors
Author:
Nina Podoliak
Author:
Eleni Mavrona
Author:
Sakellaris Mailis
Author:
Jordan, Ronald Ewan Gill
Author:
Nelson Tabiryan
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics