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Three-dimensional nanostructuring of transparent materials by the femtosecond laser irradiation

Three-dimensional nanostructuring of transparent materials by the femtosecond laser irradiation
Three-dimensional nanostructuring of transparent materials by the femtosecond laser irradiation
Femtosecond laser is a perfect laser source for materials processing when high accuracy and small structure size are required. Due to the ultra short interaction time and the high peak power, the process is generally characterized by the absence of heat diffusion and, consequently molten layers. Various induced structures have been observed inside glasses after the femtosecond laser irradiation. Here, we report the refractive index change, space-selective valence state manipulation of active ions and precipitation control of nanoparticles by a femtosecond laser in glasses. We have recently observed the three-dimensional nanostructuring such as a nano-grating and a nano-void inside a glass material by the single laser beam irradiation. The self-organized sub-wavelength periodic nanostructures are created by via a pattern of interference between the incident light field and the electric field of the bulk electron plasma wave. The mechanisms of the observed phenomena were also discussed. Furthermore, we observed the space-selective structural-phase transformation from diamond to amorphous structure which has electrically conductive property.
181-184
Shimotsuma, Y.
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Sakakura, M.
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Kanehira, S.
53ea4c6d-2e5f-4892-9840-060ced1f0c22
Qiu, J.
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Kazansky, P.G.
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Miura, K.
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Fujita, K.
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Hirao, K.
fa81b51e-88a4-496f-bf00-1eca4fd5d7ca
Shimotsuma, Y.
87dadd83-161c-47db-b2d5-d9b35426760e
Sakakura, M.
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Kanehira, S.
53ea4c6d-2e5f-4892-9840-060ced1f0c22
Qiu, J.
45a8b2f4-9b82-447c-8bcf-7c01238ab774
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Miura, K.
a7149211-8d33-4678-8aac-6ff05bf2ba5d
Fujita, K.
d0df18d2-ed70-4211-8b8c-4a97e2ac18cd
Hirao, K.
fa81b51e-88a4-496f-bf00-1eca4fd5d7ca

Shimotsuma, Y., Sakakura, M., Kanehira, S., Qiu, J., Kazansky, P.G., Miura, K., Fujita, K. and Hirao, K. (2006) Three-dimensional nanostructuring of transparent materials by the femtosecond laser irradiation. Journal of Laser Micro Nanoengineering, 1 (3), 181-184. (doi:10.2961/jlmn.2006.03.0006).

Record type: Article

Abstract

Femtosecond laser is a perfect laser source for materials processing when high accuracy and small structure size are required. Due to the ultra short interaction time and the high peak power, the process is generally characterized by the absence of heat diffusion and, consequently molten layers. Various induced structures have been observed inside glasses after the femtosecond laser irradiation. Here, we report the refractive index change, space-selective valence state manipulation of active ions and precipitation control of nanoparticles by a femtosecond laser in glasses. We have recently observed the three-dimensional nanostructuring such as a nano-grating and a nano-void inside a glass material by the single laser beam irradiation. The self-organized sub-wavelength periodic nanostructures are created by via a pattern of interference between the incident light field and the electric field of the bulk electron plasma wave. The mechanisms of the observed phenomena were also discussed. Furthermore, we observed the space-selective structural-phase transformation from diamond to amorphous structure which has electrically conductive property.

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Published date: 2006
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 259806
URI: http://eprints.soton.ac.uk/id/eprint/259806
PURE UUID: 7c6ee96e-4b31-47e9-b5e8-a6d51ebeb3c2

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Date deposited: 26 Oct 2004
Last modified: 23 Oct 2019 16:30

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Contributors

Author: Y. Shimotsuma
Author: M. Sakakura
Author: S. Kanehira
Author: J. Qiu
Author: P.G. Kazansky
Author: K. Miura
Author: K. Fujita
Author: K. Hirao

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