Manipulation of Gold Nanoparticles inside Transparent Materials

Qiu, Jianrong; Jiang, Xiongwei; Zhu, Congshan; Shirai, Mitsuru; Si, Jinhai; Jiang, Nan; Hirao, Kazuyuki

doi:10.1002/anie.200352380

Cited by 179 publications

(94 citation statements)

References 24 publications

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“…52) We also succeeded in the space-selective precipitation and control of gold nanoparticles in glass. 57) An Au 3þ -doped silicate glass sample with the composition of 70SiO 2 -10CaO-20Na 2 O and doped with 0.01 mol % Au 2 O 3 was irradiated inside the glass sample on each spot with focused 120 fs laser pulses operating at a wavelength of 800 nm (repetition rate: 1 kHz, pulse energy: 0.8 mJ) for 1/63 s (i.e., 16 pulses) via a 10Â objective lens with a numerical aperture of 0.30. Gray spots of about 40 mm were observed in the focused laser-irradiated area through an optical microscope.…”

Section: Precipitation and Control Of Nanoparticlesmentioning

confidence: 99%

Three-Dimensional Micro- and Nano-Fabrication in Transparent Materials by Femtosecond Laser

Shimotsuma

Hirao

Kazansky

et al. 2005

Jpn. J. Appl. Phys.

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Femtosecond pulsed lasers have been widely used for materials microprocessing. Due to their ultrashort pulse width and ultrahigh light intensity, the process is generally characterized by the nonthermal diffusion process. We observed various induced microstructures such as refractive-index-changed structures, color center defects, microvoids and microcracks in transparent materials (e.g., glasses after the femtosecond laser irradiation), and discussed the possible applications of the microstructures in the fabrication of various micro optical devices [e.g., optical waveguides, microgratings, microlenses, fiber attenuators, and three-dimensional (3D) optical memory]. In this paper, we review our recent research developments on single femtosecond-laser-induced nanostructures. We introduce the space-selective valence state manipulation of active ions, precipitation and control of metal nanoparticles and light polarization-dependent permanent nanostructures, and discuss the mechanisms and possible applications of the observed phenomena.

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Section: Precipitation and Control Of Nanoparticlesmentioning

confidence: 99%

Three-Dimensional Micro- and Nano-Fabrication in Transparent Materials by Femtosecond Laser

Shimotsuma

Hirao

Kazansky

et al. 2005

Jpn. J. Appl. Phys.

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“…4 It is required to use uniformly sized nanopartilces for applications, and various synthesis methods have been proposed for the preparation of mono-dispersed nanoparticles in liquid, polymer, micelle, glass matrix by chemical reduction or photoreduction. [5][6][7][8][9] In recent years, a microchip or microreactor has been utilized for nanoparticle synthesis, and several researchers have reported on the successful formation of mono-dispersed particles. 10,11 This is because such a small reaction space offers a uniform reaction environment, such as uniformity of temperature and concentrations of the reactants inside a microchannel.…”

Section: Introductionmentioning

confidence: 99%

Development of Heterodyne Detection of Dynamic Light Scattering Enhanced by the Talbot Effect for the Size Measurement of Nanoparticles

Nomura

Katayama

2008

ANAL. SCI.

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“…[1][2][3][4][5][6] Using a focusing fs laser, it is possible for one to induce the multiphoton reduction of Au 3+ or Ag + ions to their corresponding metal, the increase in refractive index, and the formation of void at the focal point inside the glass.…”

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confidence: 99%

Periodic Nanovoid Structures via Femtosecond Laser Irradiation

et al. 2005

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We have observed periodically aligned nanovoid structures inside a conventional borosilicate glass induced by a single femtosecond (fs) laser beam for the first time, to our knowledge. The spherical voids of nanosized diameter were aligned spontaneously with a period along the propagation direction of the laser beam. The period, the number of voids, and the whole length of the aligned void structure were controlled by changing the laser power, the pulse number, and the position of the focal point.Ultrashort pulsed lasers such as femtosecond (fs) lasers are considered powerful tools for inducing nonlinear optical effects or microscopic modifications inside transparent materials because of their high power density of more than 10 TW/cm 2 and their ultrashort pulse width. 1-6 Using a focusing fs laser, it is possible for one to induce the multiphoton reduction of Au 3+ or Ag + ions to their corresponding metal, the increase in refractive index, and the formation of void at the focal point inside the glass.However, a laser interference technique using fs laser pulses is applicable for the fabrication of periodic microstructures at a wide space of transparent materials because it produces a periodically modulated optical intensity with the size of the order of its wavelength. 7-10 Photonic crystals are materials in which the dielectric constant or refractive index is modulated periodically on a length scale comparable to the desired wavelength of the operation. 8,11 It is highly desired that periodic microstructures fabricated by a laser interference technique function as photonic crystals because the fabrication time can be shortened greatly. The interference of two beams produced by splitting a single laser beam can create one-dimensional (1D) periodic structures at the surface of transparent bulk materials. 7 Two-dimensional (2D) and 3D periodic structures can be fabricated using three and fourbeam interference, respectively. 8-10 Recently, we also reported the fabrication of periodic microstructures in azodyedoped polymers by multibeam interference of fs laser pulses in which a refractive index contrast (∆n) of about 5.5 × 10 -4 was induced inside the polymer.9,10 The value is large enough to induce the Bragg diffraction, but a larger ∆n value is needed in order for the periodic structures to function as photonic crystals. One method of achieving large ∆n values for photonic crystals is to make periodically aligned void structures in transparent materials. However, it is difficult to form a periodical void array using the laser interference technique in transparent materials such as glass.In this paper, we report a novel method for fabricating periodic nanosized voids inside a glass sample using a focused fs laser beam. In the conventional method, a focused fs laser beam produces a single void at the focal point. 4 Therefore, the fabrication of a periodic void array is achieved by precisely translating the glass sample.12 Our method does not require such a procedure. Surprisingly, periodically aligned voi...

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Manipulation of Gold Nanoparticles inside Transparent Materials

Abstract: Nanoparticles have a wide range of electrical and optical properties owing to the quantum-size effect, surface effect, and conjoint effect of nanostructures. [1] Materials doped with noble-metal nanoparticles exhibit large third-order nonlinear

Cited by 179 publications

References 24 publications

Three-Dimensional Micro- and Nano-Fabrication in Transparent Materials by Femtosecond Laser

Three-Dimensional Micro- and Nano-Fabrication in Transparent Materials by Femtosecond Laser

Development of Heterodyne Detection of Dynamic Light Scattering Enhanced by the Talbot Effect for the Size Measurement of Nanoparticles

Periodic Nanovoid Structures via Femtosecond Laser Irradiation

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