Space-selective precipitation of metal nanoparticles inside glasses

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

doi:10.1063/1.1509095

Cited by 152 publications

(116 citation statements)

References 25 publications

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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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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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“…17 In general, the surface plasmon resonance of silver nanoparticles in oxide glass is located at 450 nm. 11 Thus, the absorption band at 470 nm in spectrum B (Fig. 2) indicates that Ag 0 NPs have been generated during fs-laser irradiation.…”

Section: Resultsmentioning

confidence: 99%

“…8 For instance, the spatially controlled growth of metallic nanoparticles in glass using femtosecond laser irradiation has been demonstrated. [9][10][11][12] The control of such properties in a confined region makes possible the development of photonic devices, as waveguides, splitters, resonators, and microfluidic channels. 7,8 Fabrication of waveguides in materials with promising optical nonlinearities has been the subject of several studies aiming at integrated photonic devices.…”

Section: Introductionmentioning

confidence: 99%

Metallic nanoparticles grown in the core of femtosecond laser micromachined waveguides

Almeida

Ferreira

Manzani

et al. 2014

Journal of Applied Physics

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Articles you may be interested inEr:Yb-doped oxyfluoride silicate glass waveguide amplifier fabricated using femtosecond laser inscription Appl. Phys. Lett. 90, 131102 (2007) 3D-waveguides containing silver nanoparticles have been fabricated in tungsten leadpyrophosphate glass by femtosecond laser micromachining. Nucleation and growth of nanoparticles occur in a single step process when high repetition rate laser (MHz) is employed, while an additional annealing is required for the irradiation using kHz laser system. The presence of nanoparticles locally changes the refractive index, and, therefore, the elliptical structures produced by direct laser writing were able to guide light. By increasing the pulse energy applied during the micromachining, the waveguide size increased from 2 to 30 lm, while their propagation loss decrease from 1.4 to 0.5 dB/mm at 632.8 nm. V C 2014 AIP Publishing LLC.

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Space-selective precipitation of metal nanoparticles inside glasses

Cited by 152 publications

References 25 publications

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

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

Metallic nanoparticles grown in the core of femtosecond laser micromachined waveguides

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