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New phenomena in interaction of intense ultrashort light pulses with transparent materials - from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity

New phenomena in interaction of intense ultrashort light pulses with transparent materials - from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity
New phenomena in interaction of intense ultrashort light pulses with transparent materials - from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity
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. It has been experimentally demonstrated that the pulse front tilt is responsible for the occurrence of directional dependence. Additionally, an anisotropic cavitation was observed in the vicinity of the focus at high fluences. The bubbles, formed in the bulk of the glass, can be trapped and manipulated in the plane perpendicular to the light propagation direction by controlling the laser writing direction relative to the tilt of the pulse front. Another intriguing effect recently discovered occurs when the direction of the femtosecond laser beam is reversed from +Z to -Z directions, the structures written in a lithium niobate crystal are mirror images when translating the beam along the +Y and -Y directions. In contrast to glass, the directional dependence of writing in lithium niobate depends on the orientation of the crystal with respect to the direction of the beam movement and the light propagation direction. A theoretical model was created to demonstrate how in the lithium niobate, the nonreciprocal photosensitivity manifests itself as a changing the sign of the light-induced current when the light propagation direction is reversed. Therefore, in a non-centrosymmetric medium, modification of the material can be different when light propagates in opposite directions.
9780819479969
760017
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Svirko, Yuri P.
d64a0366-ef29-4a31-878e-54f7536816ac
Song, Jin-Joo
e40bc9be-0a26-4ee1-a340-1f22e99e6db4
Tsen, Kong-Thon
e2d294b0-f9ec-4106-aff9-868f87317302
Betz, Markus
2647bd55-cfc2-437b-9444-371ce21a4b6d
Elezzabi, Abdulhakem Y.
fd089b54-c718-4876-aa6f-6161d9bff329
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Svirko, Yuri P.
d64a0366-ef29-4a31-878e-54f7536816ac
Song, Jin-Joo
e40bc9be-0a26-4ee1-a340-1f22e99e6db4
Tsen, Kong-Thon
e2d294b0-f9ec-4106-aff9-868f87317302
Betz, Markus
2647bd55-cfc2-437b-9444-371ce21a4b6d
Elezzabi, Abdulhakem Y.
fd089b54-c718-4876-aa6f-6161d9bff329

Kazansky, Peter G., Beresna, Martynas, Shimotsuma, Yasuhiko, Hirao, Kazuyuki and Svirko, Yuri P. (2010) New phenomena in interaction of intense ultrashort light pulses with transparent materials - from 3D self-assembled nanostructures to quill writing and nonreciprocal photosensitivity. Song, Jin-Joo, Tsen, Kong-Thon, Betz, Markus and Elezzabi, Abdulhakem Y. (eds.) SPIE 7600 : Photonics West : Ultrafast Phenomena in Semiconductors and Nanostructured Materials XIV, San Francisco. 23 - 28 Jan 2010. p. 760017 . (doi:10.1117/12.845780).

Record type: Conference or Workshop Item (Other)

Abstract

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. It has been experimentally demonstrated that the pulse front tilt is responsible for the occurrence of directional dependence. Additionally, an anisotropic cavitation was observed in the vicinity of the focus at high fluences. The bubbles, formed in the bulk of the glass, can be trapped and manipulated in the plane perpendicular to the light propagation direction by controlling the laser writing direction relative to the tilt of the pulse front. Another intriguing effect recently discovered occurs when the direction of the femtosecond laser beam is reversed from +Z to -Z directions, the structures written in a lithium niobate crystal are mirror images when translating the beam along the +Y and -Y directions. In contrast to glass, the directional dependence of writing in lithium niobate depends on the orientation of the crystal with respect to the direction of the beam movement and the light propagation direction. A theoretical model was created to demonstrate how in the lithium niobate, the nonreciprocal photosensitivity manifests itself as a changing the sign of the light-induced current when the light propagation direction is reversed. Therefore, in a non-centrosymmetric medium, modification of the material can be different when light propagates in opposite directions.

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More information

e-pub ahead of print date: 2010
Venue - Dates: SPIE 7600 : Photonics West : Ultrafast Phenomena in Semiconductors and Nanostructured Materials XIV, San Francisco, 2010-01-23 - 2010-01-28

Identifiers

Local EPrints ID: 178363
URI: https://eprints.soton.ac.uk/id/eprint/178363
ISBN: 9780819479969
PURE UUID: 0ceb3459-b58e-47b0-b8a1-9c68eac724ec

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Date deposited: 25 Mar 2011 09:44
Last modified: 16 Jul 2019 23:44

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