The University of Southampton
University of Southampton Institutional Repository

New phenomena in ultrafast laser interaction with matter

New phenomena in ultrafast laser interaction with matter
New phenomena in ultrafast laser interaction with matter
Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D micro- and nano-structuring [1]. Three different types of material modifications can be induced with ultrafast laser irradiation in the bulk of a transparent material, silica glass in particular: an isotropic refractive index change (type 1); a form birefringence associated with self-assembled nanogratings and negative refractive index change (type 2) [2, 3]; and a void (type 3). In fused silica the transition from type 1 to type 2 and finally to type 3 modification is observed with an increase of fluence. Recently, a remarkable phenomenon in ultrafast laser processing of transparent materials has been reported manifesting itself as a change in material modification by reversing the writing direction [4]. The phenomenon has been interpreted in terms of anisotropic plasma trapping and heating by a tilted front of the ultrashort laser pulse. Moreover a change in structural modification has been demonstrated in glass by controlling the direction of pulse front tilt, achieving a calligraphic style of laser writing which is similar in appearance to that inked with the bygone quill pen [5]. It has also been a common belief that in a homogeneous medium, the photosensitivity and corresponding light-induced material modifications do not change on the reversal of light propagation direction. More recently we have observed that in a non-centrosymmetric medium, modification of the material can be different when light propagates in opposite directions (KaYaSo effect) [6]. Non-reciprocity is produced by magnetic field (Faraday effect) and movement of the medium with respect to the direction of light propagation: parallel (Sagnac effect) or perpendicular (KaYaSo effect). We anticipate that the observed phenomena will open new opportunities in laser material processing, laser surgery, optical manipulation and data storage.
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Yang, Weijia
ecad1a03-22e3-4a91-b6e6-a5f8660e2ab4
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Qiu, Jiarong
befa87a1-4795-4e67-b74f-81239eee689c
Svirko, Yuri P.
d64a0366-ef29-4a31-878e-54f7536816ac
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Yang, Weijia
ecad1a03-22e3-4a91-b6e6-a5f8660e2ab4
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Qiu, Jiarong
befa87a1-4795-4e67-b74f-81239eee689c
Svirko, Yuri P.
d64a0366-ef29-4a31-878e-54f7536816ac

Kazansky, Peter G., Yang, Weijia, Beresna, Martynas, Shimotsuma, Yasuhiko, Sakakura, Masaaki, Hirao, Kazuyuki, Qiu, Jiarong and Svirko, Yuri P. (2009) New phenomena in ultrafast laser interaction with matter. Progress In Electromagnetics Research Symposium, China. 23 - 27 Mar 2009. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D micro- and nano-structuring [1]. Three different types of material modifications can be induced with ultrafast laser irradiation in the bulk of a transparent material, silica glass in particular: an isotropic refractive index change (type 1); a form birefringence associated with self-assembled nanogratings and negative refractive index change (type 2) [2, 3]; and a void (type 3). In fused silica the transition from type 1 to type 2 and finally to type 3 modification is observed with an increase of fluence. Recently, a remarkable phenomenon in ultrafast laser processing of transparent materials has been reported manifesting itself as a change in material modification by reversing the writing direction [4]. The phenomenon has been interpreted in terms of anisotropic plasma trapping and heating by a tilted front of the ultrashort laser pulse. Moreover a change in structural modification has been demonstrated in glass by controlling the direction of pulse front tilt, achieving a calligraphic style of laser writing which is similar in appearance to that inked with the bygone quill pen [5]. It has also been a common belief that in a homogeneous medium, the photosensitivity and corresponding light-induced material modifications do not change on the reversal of light propagation direction. More recently we have observed that in a non-centrosymmetric medium, modification of the material can be different when light propagates in opposite directions (KaYaSo effect) [6]. Non-reciprocity is produced by magnetic field (Faraday effect) and movement of the medium with respect to the direction of light propagation: parallel (Sagnac effect) or perpendicular (KaYaSo effect). We anticipate that the observed phenomena will open new opportunities in laser material processing, laser surgery, optical manipulation and data storage.

Text
4683.pdf - Other
Download (132kB)

More information

Published date: 23 March 2009
Additional Information: (Invited)
Venue - Dates: Progress In Electromagnetics Research Symposium, China, 2009-03-23 - 2009-03-27

Identifiers

Local EPrints ID: 166953
URI: http://eprints.soton.ac.uk/id/eprint/166953
PURE UUID: 172e96a1-4544-4341-af8e-406c19e0ecbf

Catalogue record

Date deposited: 04 Nov 2010 09:37
Last modified: 19 Mar 2020 17:34

Export record

Contributors

Author: Weijia Yang
Author: Yasuhiko Shimotsuma
Author: Masaaki Sakakura
Author: Kazuyuki Hirao
Author: Jiarong Qiu
Author: Yuri P. Svirko

University divisions

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.

×