TITLE

In situ spectroscopic measurement of transmitted light related to defect formation in SiO[sub 2] during femtosecond laser irradiation

AUTHOR(S)
Fukata, N.; Yamamoto, Y.; Murakami, K.; Hase, M.; Kitajima, M.
PUB. DATE
October 2003
SOURCE
Applied Physics Letters;10/27/2003, Vol. 83 Issue 17, p3495
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We measured real-time spectra of light transmitted through SiO[sub 2] specimens during irradiation of amplified ultrashort laser with a fluence of 540 mJ/cm[sup 2]. The real-time spectra exhibit a peak at around 400 nm, which significantly depends on the irradiation time. The observation and identification of defects were performed by measurements of electron spin resonance (ESR). Both dependences of the peak at around 400 nm on irradiation time and laser power are in good agreement with those of the ESR signal intensity of positively charged oxygen vacancies (E[sup ′] center). This strong correlation shows that self-trapped excitons are created followed by the formation of the E[sup ′] center and finally that of ESR inactive centers, namely, oxygen-deficiency centers. © 2003 American Institute of Physics.
ACCESSION #
11123027

 

Related Articles

  • Tuning etch selectivity of fused silica irradiated by femtosecond laser pulses by controlling polarization of the writing pulses. Xiaoming Yu; Yang Liao; Fei He; Bin Zeng; Ya Cheng; Zhizhan Xu; Sugioka, Koji; Midorikawa, Katsumi // Journal of Applied Physics;Mar2011, Vol. 109 Issue 5, p053114 

    We report on experimental study on chemical etch selectivity of fused silica irradiated by femtosecond laser with either linear or circular polarization in a wide range of pulse energies. The relationships between the etch rates and pulse energies are obtained for different polarization states,...

  • Demonstration of high-density three-dimensional storage in fused silica by femtosecond laser pulses. Cheng, Guanghua; Wang, Yishan; White, J. D.; Liu, Qing; Zhao, Wei; Chen, Guofu // Journal of Applied Physics;8/1/2003, Vol. 94 Issue 3, p1304 

    Three-dimensional optical recording of high contrast spherical bits (diameter<300 nm) at a density of 500 G/cm³ in fused silica using a Ti:sapphire femtosecond laser is demonstrated. Bits are optically read out using both a confocal and a phase-contrast scheme. The recording density for...

  • Femtosecond laser induced crystallization and permanent relief grating structures in amorphous inorganic (In[sub 2]O[sub 3]+1 wt % TiO[sub 2]) films. Katayama, Shigeru; Tsutsumi, Naoto; Nakamura, Toshitaka; Horiike, Mika; Hirao, Kazuyuki // Applied Physics Letters;7/29/2002, Vol. 81 Issue 5, p832 

    This letter presents an investigation of crystalline relief grating structures induced by irradiation of near-infrared femtosecond laser pulses on an amorphous inorganic (In[sub 2]O[sub 3] + 1 wt % TiO[sub 2]) film. The shapes of crystallized relief structures were sensitive to the scanning rate...

  • The effect of intensity of excitation on CdSe/ZnS quantum dots: Opportunities in luminescence sensing. Sutter, Jens U.; Birch, David J. S.; Rolinski, Olaf J. // Applied Physics Letters;1/10/2011, Vol. 98 Issue 2, p021108 

    We report changes in the photophysical properties of core-shell type CdSe/ZnS quantum dots (QDs) under optical irradiation. QDs either in aqueous solution or immobilized in a silica sol gel matrix have been excited at different wavelengths and fluxes. Illumination of the sample with 140 fs 700...

  • Writing optical waveguides in fused silica using 1 kHz femtosecond infrared pulses. Saliminia, A.; Nguyen, N. T.; Nadeau, M.-C.; Petit, S.; Chin, S. L.; Vallée, R. // Journal of Applied Physics;4/1/2003, Vol. 93 Issue 7, p3724 

    We have investigated the writing of waveguides in bulk pure fused silica glass with femtosecond Ti:Sapphire laser at 1 kHz repetition rate. The photoinduced tracks were characterized in terms of writing geometry (parallel and perpendicular), pulse duration (45 fs, 140 fs, and 200 fs), pulse...

  • Characterization of nonlinear scattering in colloidal suspensions of silica particles. Joudrier, V.; Bourdon, P.; Hache, F.; Flytzanis, C. // Applied Physics B: Lasers & Optics;2000, Vol. 70 Issue 1, p105 

    Abstract. We present a quantitative characterization of an optical limiting device based on nonlinear light scattering due to a photoinduced refractive index mismatch in colloidal suspensions of silica particles. We analyze the origin of the optical limiting process by direct measurements of the...

  • High-power femtosecond-laser pulse propagation in silica. Ishikawa, Kenichi; Kumagai, Hiroshi; Midorikawa, Katsumi // AIP Conference Proceedings;2002, Vol. 634 Issue 1, p203 

    We present a numerical study of the (2 + 1)-dimensional propagation dynamics of femtosecond laser pulses in silica. Pulses whose power is tens to hundreds of times higher than the threshold for self-focusing is split into multiple cones during its propagation. This new structure is formed as a...

  • Holographic writing of volume-type microgratings in silica glass by a single chirped laser pulse. Kawamura, Ken-ichi; Hirano, Masahiro; Kamiya, Toshio; Hosono, Hideo // Applied Physics Letters;8/5/2002, Vol. 81 Issue 6, p1137 

    Refractive-index-modulated volume-type gratings were holographically encoded inside pure SiO[sub 2] glass plates by a single chirped (0.5-5 ps duration) laser pulse generated from a mode-locked Ti:sapphire laser (wavelength ∼800 nm, emission pulse duration ∼100 fs). Scanning-electron-...

  • Laser acceleration of electrons in a thin metal film. Zinov’ev, A. V.; Lugovskoı, A. V. // JETP Letters;7/10/97, Vol. 66 Issue 1, p6 

    A mechanism acceleration of electrons to relativistic velocities in a thin metal film irradiated with ultrashort (τ≤1 ps) high-power (I>10[sup 16] W/cm²) laser pulses is proposed. The acceleration is due to a resonance action of the nonuniform field on a portion of the electrons,...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics