Estimation of the Refractive Index Change in Glass Induced by Femtosecond Laser Pulses
作者： Tadamasa Toma , Yoshio Furuya , Wataru Watanabe , Kazuyoshi Itoh , Junji Nishii
DOI: 10.1007/S10043-000-0014-0
关键词: Laser 、 Femtosecond 、 Zone plate 、 Step-index profile 、 Materials science 、 Refractive index 、 Self-focusing 、 Fiber Bragg grating 、 Diffraction 、 Optics
摘要: It is known that local refractive index change occurs when femtosecond laser pulses with extremely high peak power are launched into glass. We focused 130-femtosecond of 800 nm the bulk glass and examined shape induced change. found length spot along optical axis reached about 30 μm despite diameter being 2 μm. To estimate distribution change, we fabricated Bragg grating by scanning calculated amount applying Kogelnik’s coupled mode theory to measured diffraction efficiencies higher order diffracted beams.
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sci-hub.se 参考文章(9)
R. W. Hopper, D. R. Uhlmann, Mechanism of Inclusion Damage in Laser Glass Journal of Applied Physics. ,vol. 41, pp. 4023- 4037 ,(1970) , 10.1063/1.1658407
K. M. Davis, K. Miura, N. Sugimoto, K. Hirao, Writing waveguides in glass with a femtosecond laser Optics Letters. ,vol. 21, pp. 1729- 1731 ,(1996) , 10.1364/OL.21.001729
Kazuyoshi Itoh, Wataru Watanabe, Kouichi Ikezawa, Yoshio Furuya, Micro-Bragg reflectors in photorefractive 3D waveguides Photorefractive fiber and crystal devices : materials, optical properties, and applications. Conference. ,vol. 3137, pp. 162- 170 ,(1997) , 10.1117/12.279178
Mario Bertolotti, Aldo Ferrari, Concita Sibilia, Giovenna Suber, Dar Apostol, Peter Jani, Photothermal deflection technique for measuring thermal nonlinearities in semiconductor glasses Applied Optics. ,vol. 27, pp. 1811- 1813 ,(1988) , 10.1364/AO.27.001811
E. N. Glezer, E. Mazur, Ultrafast-laser driven micro-explosions in transparent materials Applied Physics Letters. ,vol. 71, pp. 882- 884 ,(1997) , 10.1063/1.119677
W. J. Tomlinson, I. P. Kaminow, E. A. Chandross, R. L. Fork, W. T. Silfvast, PHOTOINDUCED REFRACTIVE INDEX INCREASE IN POLY(METHYLMETHACRYLATE) AND ITS APPLICATIONS Applied Physics Letters. ,vol. 16, pp. 486- 489 ,(1970) , 10.1063/1.1653076
Junji Nishii, Hideo Hosono, Hiroshi Kawazoe, Naoyuki Kitamura, Hiroshi Yamanaka, Ultraviolet-radiation-induced chemical reactions through one-and two-photon absorption processes in GeO 2 –SiO 2 glasses Optics Letters. ,vol. 20, pp. 1184- 1186 ,(1995) , 10.1364/OL.20.001184
Y. R. Shen, The Principles of Nonlinear Optics ,(1984)
Herwig Kogelnik, Coupled Wave Theory for Thick Hologram Gratings Bell System Technical Journal. ,vol. 48, pp. 2909- 2947 ,(1969) , 10.1002/J.1538-7305.1969.TB01198.X