The University of Southampton
University of Southampton Institutional Repository

Creating unusual structures by ultrashort light pulses in glass

Creating unusual structures by ultrashort light pulses in glass
Creating unusual structures by ultrashort light pulses in glass
Progress in high power ultra-short pulse lasers has opened new frontiers in physics and technology of light-matter interactions and laser micro-machining. The use of femtosecond lasers to directly write photonic structures deep within transparent media has attracted much attention due to its capability for precise structuring in three dimensions. Recent observations of anisotropic light scattering and reflection from the regions modified by intense femtosecond light pulses in the direction parallel to the polarization of wring laser, have given the evidence of sub-wavelength periodic structures imprinted in irradiated materials. Form birefringence induced by self-organized sub-wavelength index gratings has been also proposed to explain a puzzling phenomenon of uniaxial birefringence of structures written within silica glass. Recently the first direct evidence of self-assembled periodic structures within the bulk of material has been reported. The observed volume grating structures are the smallest (20 nm width) and the strongest (-0.2 index change) ever created by light in transparent materials. Moreover these are the first gratings created by interference of bulk electron plasma waves. Another recent unusual observation is the demonstration that writing by femtosecond laser from left to right can be different from writing in the opposite direction. Structures with broken mirror symmetry and chiral patterns in chalcogenide glass have been demonstrated. In the talk the study of these unusual structures created by ultrashort light pulses is reviewed.
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Yang, W.
8d99a175-3cc8-44bc-99c2-cf431ae9a4ea
Bricchi, E.
90e6f0e4-b25b-4b7e-8bb2-9d3c9f9f74b6
Shimotsuma, Y.
87dadd83-161c-47db-b2d5-d9b35426760e
Hirao, K.
fa81b51e-88a4-496f-bf00-1eca4fd5d7ca
Kitagawa, R.
a7656fb6-cd49-4d1f-8004-3111a6cd8fb2
Takebe, H.
7dbc1b40-b524-47b8-a478-2808dd167844
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Yang, W.
8d99a175-3cc8-44bc-99c2-cf431ae9a4ea
Bricchi, E.
90e6f0e4-b25b-4b7e-8bb2-9d3c9f9f74b6
Shimotsuma, Y.
87dadd83-161c-47db-b2d5-d9b35426760e
Hirao, K.
fa81b51e-88a4-496f-bf00-1eca4fd5d7ca
Kitagawa, R.
a7656fb6-cd49-4d1f-8004-3111a6cd8fb2
Takebe, H.
7dbc1b40-b524-47b8-a478-2808dd167844

Kazansky, P.G., Yang, W., Bricchi, E., Shimotsuma, Y., Hirao, K., Kitagawa, R. and Takebe, H. (2006) Creating unusual structures by ultrashort light pulses in glass. 1st international Workshop on Multiphoton Process in Glass and Glassy Materials, Sydney, Australia. 11 - 12 Dec 2006.

Record type: Conference or Workshop Item (Paper)

Abstract

Progress in high power ultra-short pulse lasers has opened new frontiers in physics and technology of light-matter interactions and laser micro-machining. The use of femtosecond lasers to directly write photonic structures deep within transparent media has attracted much attention due to its capability for precise structuring in three dimensions. Recent observations of anisotropic light scattering and reflection from the regions modified by intense femtosecond light pulses in the direction parallel to the polarization of wring laser, have given the evidence of sub-wavelength periodic structures imprinted in irradiated materials. Form birefringence induced by self-organized sub-wavelength index gratings has been also proposed to explain a puzzling phenomenon of uniaxial birefringence of structures written within silica glass. Recently the first direct evidence of self-assembled periodic structures within the bulk of material has been reported. The observed volume grating structures are the smallest (20 nm width) and the strongest (-0.2 index change) ever created by light in transparent materials. Moreover these are the first gratings created by interference of bulk electron plasma waves. Another recent unusual observation is the demonstration that writing by femtosecond laser from left to right can be different from writing in the opposite direction. Structures with broken mirror symmetry and chiral patterns in chalcogenide glass have been demonstrated. In the talk the study of these unusual structures created by ultrashort light pulses is reviewed.

Full text not available from this repository.

More information

Published date: December 2006
Venue - Dates: 1st international Workshop on Multiphoton Process in Glass and Glassy Materials, Sydney, Australia, 2006-12-11 - 2006-12-12

Identifiers

Local EPrints ID: 76381
URI: http://eprints.soton.ac.uk/id/eprint/76381
PURE UUID: ad2d1924-f42e-49eb-bf73-53b2379af778

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jun 2021 16:30

Export record

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

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×