Abstract
We show that photoionization of wide band gap silicate glasses by infrared ultrashort laser pulses can occur without laser-induced damage. Two glasses are studied, fused silica and a multi-component silicate photo-thermo-refractive (PTR) glass. Experiments are performed by low numerical aperture focusing of ultrashort laser pulses (100 fsec<τ<1.5 psec) at the wavelengths 780 nm, 1430 nm, and 1550 nm. Filaments form inside both glasses and are visibly observable due to intrinsic luminescence. Keldysh’s theory of nonlinear photoionization is used to model the formation of filaments and values of about 1013 W cm−2 for the laser intensity and 1019 cm−3 for the free electron density are estimated for stable filaments to arise. Laser-induced damage is studied by the generation of a third harmonic from an interface created between a damage site and the surrounding glass matrix. It is found that third harmonic generation occurs only after several thousands of laser shots indicating that damage is not a single-shot phenomena. The ability to photoionize PTR glass without damage by ultrashort laser pulses offers a new approach for fabricating diffractive optical elements in photosensitive glass.
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References
N. Bloembergen, Laser induced electric breakdown in solids. IEEE J. Quantum Electron. 10, 375–386 (1974)
E.W. Van Stryland, M.J. Soileau, A.L. Smirl, W.E. Williams, Pulsewidth and focal volume dependence of laser-induced breakdown. Phys. Rev. B 23, 2144 (1981)
L.B. Glebov, O.M. Efimov, M.N. Libenson, G.T. Petrovskii, New ideas about the intrinsic optical breakdown of transparent insulators. Sov. Phys. Dokl. 31, 326–328 (1986)
S.C. Jones, P. Braunlich, R.T. Casper, X.A. Shen, Recent progress on laser-induced modifications and intrinsic bulk damage of wide-gap optical materials. Opt. Eng. 28, 1039–1068 (1989)
K.M. Davis, K. Miura, N. Sugimoto, K. Hirao, Writing waveguides in glass with a femtosecond laser. Opt. Lett. 21, 1729–1731 (1996)
E.N. Glezer, M. Milosavljevic, L. Huang, R.J. Finlay, T.-H. Her, J.P. Callan, E. Mazur, Three-dimensional optical storage inside transparent materials. Opt. Lett. 21, 2023–2025 (1996)
L. Tong, R.R. Gattass, I. Maxwell, J.B. Ashcom, E. Mazur, Optical loss measurements in femtosecond laser written waveguides in glass. Opt. Commun. 259, 626–630 (2006)
L.A. Siiman, J. Lumeau, L.B. Glebov, Nonlinear photosensitivity of photo-thermo-refractive glass by high intensity laser irradiation. J. Non-Cryst. Solids 354, 4070–4074 (2008)
L. Glebov, Fluorinated silicate glass for conventional and holographic optical elements, in Window and Dome Technologies and Materials X, Proc. of SPIE, vol. 6545, 654507 (2007)
J. Lumeau, L. Glebova, L.B. Glebov, Influence of UV-exposure on the crystallization and optical properties of photo-thermo-refractive glass. J. Non-Cryst. Solids 354, 425–430 (2008)
G.M. Zverev, E.K. Maldutis, V.A. Pashkov, Development of self-focusing filaments in solid dielectrics. JETP Lett. 9, 61–63 (1969)
M.M.T. Loy, Y.R. Shen, Small-scale filaments in liquids and tracks of moving foci. Phys. Rev. Lett. 22, 994–997 (1969)
A.N. Trukhin, M.N. Tolstoi, L.B. Glebov, V.L. Savel’ev, Elementary electronic excitations in pure sodium silicate glasses. Phys. Status Solidi B, Basic Res. 99, 155–162 (1980)
O.M. Efimov, L.B. Glebov, S. Grantham, M. Richardson, Photoionization of silicate glasses exposed to IR femtosecond pulses. J. Non-Cryst. Solids 253, 58–67 (1999)
E. Yablonovitch, N. Bloembergen, Avalanche ionization and the limiting diameter of filaments induced in by light pulses in transparent media. Phys. Rev. Lett. 29, 907–910 (1972)
S. Tzortzakis, L. Sudrie, M. Franco, B. Prade, A. Mysyrowicz, Self-guided propagation of ultrashort IR laser pulses in fused silica. Phys. Rev. Lett. 87, 213902 (2001)
E. Gaižauskas, V. Kudriašov, V. Vaičaitis, V. Sirutkaitis, Fabrication of the refractive index gratings in optical glasses by the filamentary propagation of femtosecond laser pulses. Proc. SPIE 6403, 640303 (2006)
L.B. Glebov, Optical absorption and ionization of silicate glasses. Proc. SPIE 4347, 343–356 (2001)
H.J. Fitting, A.N. Trukhin, T. Barfels, B. Schmidt, A. Von Czarnowsi, Radiation induced effects in SiO2. Radiat. Eff. Defects Solids 157, 575–581 (2002)
R.R. Alfano, S.L. Shapiro, Observation of self-phase modulation and small-scale filaments in crystals and glasses. Phys. Rev. Lett. 24, 592–594 (1970)
A. Brodeur, S.L. Chin, Band-gap dependence of the ultrafast white-light continuum. Phys. Rev. Lett. 80, 4406–4409 (1998)
W. Franz, Einfluß eines elektrischen feldes auf eine optische absorptionskante. Z. Naturforsch. 13a, 484–491 (1958)
L.V. Keldysh, Behavior of nonmetallic crystals in strong electric fields. Sov. Phys. JETP 6, 763 (1958)
L.V. Keldysh, Ionization in the field of a strong electromagnetic wave. Sov. Phys. JETP 20, 1307–1314 (1965)
A. Brodeur, S.L. Chin, Ultrafast white-light continuum generation and self-focusing in transparent condensed media. J. Opt. Soc. Am. B, Opt. Phys. 16, 637–650 (1999)
J.N. Chróinín, A. Dragomir, J.G. McInerney, D.N. Nikogosyan, Accurate determination of two-photon absorption coefficients in fused silica and crystalline quartz at 264 nm. Opt. Commun. 187, 185–191 (2001)
S. Santran, M. Martinez-Rosas, L. Canioni, L. Sarger, L. Glebova, A. Tirpak, L. Glebov, Nonlinear refractive index of photo-thermo-refractive glass. Opt. Mater. 28, 401–407 (2006)
V.E. Gruzdev, J.K. Chen, Laser-induced ionization and intrinsic breakdown of wide band-gap solids. Appl. Phys. A 90, 255–261 (2008)
C.B. Schaffer, A. Brodeur, E. Mazur, Laser-induced breakdown and damage in bulk transparent materials induced by tightly focused femtosecond laser pulses. Meas. Sci. Technol. 12, 1784–1794 (2001)
X. Mao, S.S. Mao, R.E. Russo, Imaging femtosecond laser-induced electronic excitation in glass. Appl. Phys. Lett. 82, 697 (2003)
D.G. Papazoglou, I. Zergioti, S. Tzortzakis, Plasma strings from ultraviolet laser filaments drive permanent structural modifications in fused silica. Opt. Lett. 32, 2055–2057 (2007)
T.Y.F. Tsang, Optical third harmonic generation at interfaces. Phys. Rev. A 52, 4116–4126 (1995)
L. Sudrie, A. Couairon, M. Franco, B. Lamouroux, B. Prade, S. Tzortzakis, A. Mysyrowicz, Femtosecond laser-induced damage and filamentary propagation in fused silica. Phys. Rev. Lett. 89, 186601 (2002)
S.V. Garnov, V.I. Konov, A.A. Malyutin, O.G. Tsar’kova, I.S. Yatskovskii, F. Dausinger, Dynamics of plasma production and development in gases and transparent solids irradiated by high-intensity, tightly focused picosecond laser pulses. Quantum Electron. 33, 758–764 (2003)
L.A. Siiman, J. Lumeau, L.B. Glebov, Phase Fresnel lens recorded in photo-thermo-refractive glass by selective exposure to infrared ultrashort laser pulses. Opt. Lett. 34, 40–42 (2009)
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Siiman, L.A., Lumeau, J. & Glebov, L.B. Nonlinear photoionization and laser-induced damage in silicate glasses by infrared ultrashort laser pulses. Appl. Phys. B 96, 127–134 (2009). https://doi.org/10.1007/s00340-009-3526-8
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DOI: https://doi.org/10.1007/s00340-009-3526-8