Fabrication of a Ti:sapphire planar waveguide by pulsed laser deposition

Uetsuhara, H.; Goto, Satoshi; Nakata, Yoshiki; Vasa, Nilesh J.; Okada, Tatsuo; Maeda, Mitsuo

doi:10.1007/s003390051514

Cited by 22 publications

(10 citation statements)

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“…Waveguides in diverse configurations can be fabricated by a few developed techniques, including metal‐ion indiffusion , ion/proton exchange , epitaxial layer deposition (sputtering, molecular beam epitaxy (MBE), chemical vapor deposition (CVD), pulsed laser deposition (PLD), etc.) , ion‐beam implantation/irradiation , and femtosecond (fs) laser micromachining/writing .…”

Section: Introductionmentioning

confidence: 99%

Optical waveguides in crystalline dielectric materials produced by femtosecond‐laser micromachining

Chen

Aldana

2013

Laser & Photonics Reviews

605

392

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Femtosecond-laser micromachining (also known as inscription or writing) has been developed as one of the most efficient techniques for direct three-dimensional microfabrication of transparent optical materials. In integrated photonics, by using direct writing of femtosecond/ultrafast laser pulses, optical waveguides can be produced in a wide variety of optical materials. With diverse parameters, the formed waveguides may possess different configurations. This paper focuses on crystalline dielectric materials, and is a review of the state-of-the-art in the fabrication, characterization and applications of femtosecondlaser micromachined waveguiding structures in optical crystals and ceramics. A brief outlook is presented by focusing on a few potential spotlights.

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Section: Introductionmentioning

confidence: 99%

Optical waveguides in crystalline dielectric materials produced by femtosecond‐laser micromachining

Chen

Aldana

2013

Laser & Photonics Reviews

605

392

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“…In PLD, the radii of the nanoparticles that condensed from the gas phase ranged from a few nm to some tens of nm [ 5 , 6 ]. On the other hand, the droplets fabricated by PLD were some hundreds of nm in radius [ 7 ]. Using LIDT, nanoparticles with radii smaller than 250 nm can be fabricated [ 19 , 30 ].…”

Section: Resultsmentioning

confidence: 99%

“…Such nanoparticles have been fabricated by chemosynthesis [ 1 , 2 ], chemical-vapor deposition [ 3 ], electron-beam lithography [ 4 ], laser processing, etc. In laser processing, pulsed-laser deposition (PLD) [ 5 , 6 , 7 ] and local melting of thin films have been employed, with the latter technique using melting and re-solidification of the film [ 8 , 9 , 10 , 11 ]. For area processing by a Gaussian beam, the particle sizes are dispersed due to the Rayleigh instability criterion [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Local Melting of Gold Thin Films by Femtosecond Laser-Interference Processing to Generate Nanoparticles on a Source Target

et al. 2018

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Shape- and size-controlled metallic nanoparticles are very important due to their wide applicability. Such particles have been fabricated by chemosynthesis, chemical-vapor deposition, and laser processing. Pulsed-laser deposition and laser-induced dot transfer use ejections of molten layers and solid-liquid-solid processes to fabricate nanoparticles with a radius of some tens to hundreds of nm. In these processes, the nanoparticles are collected on an acceptor substrate. In the present experiment, we used laser-interference processing of gold thin films, which deposited nanoparticles directly on the source thin film with a yield ratio. A typical nanoparticle had roundness fr=0.99 and circularity fcirc=0.869, and the radius was controllable between 69 and 188 nm. The smallest radius was 82 nm on average, and the smallest standard deviation was 3 nm. The simplicity, high yield, and ideal features of the nanoparticles produced by this method will broaden the range of applications of nanoparticles in fields such as plasmonics.

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“…The achievement of waveguide structures in ZnO material makes it possible to extend its application in light emitter devices and can provide more choice in the design of ZnO microdevices. There are a few technics to produce waveguides in optical materials, such as ion exchange [11,12], epitaxial film deposition [13,14], sol-gel [15], ion implantation/irradiation [16][17][18][19] and pulsed laser writing [20][21][22][23], etc. Among these, ion beam technique is an efficient and highly controllable method, and it does not rely on the chemical properties of the target materials [24].…”

Section: Introductionmentioning

confidence: 99%

Planar and ridge ZnO optical waveguides produced by 15 MeV C^5+ ion irradiation

Yao

Wang

Dong

et al. 2015

Opt. Mater. Express

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In this work swift-heavy C 5+ ion irradiation with energy of 15 MeV was taken place in ZnO crystal. Planar waveguide is observed in the ion beam affected region, showing single-mode optical confinement for both TE and TM polarization, with propagation loss at a low level. Refractive index profile of the waveguide was reconstructed, showing an optical "barrier" in the ion trajectory. Furthermore, ridge waveguides with good propagation properties were produced by precise diamond blade dicing. This is the first time to our knowledge the formation of 2-dimensional waveguides in ZnO crystal, using ion beam technique. , "Low-loss and directional output ZnO thin-film ridge waveguide random lasers with MgO capped layer," Appl. Phys. Lett. 86(3), 031112 (2005). 3.

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Fabrication of a Ti:sapphire planar waveguide by pulsed laser deposition

Cited by 22 publications

References 0 publications

Optical waveguides in crystalline dielectric materials produced by femtosecond‐laser micromachining

Optical waveguides in crystalline dielectric materials produced by femtosecond‐laser micromachining

Local Melting of Gold Thin Films by Femtosecond Laser-Interference Processing to Generate Nanoparticles on a Source Target

Planar and ridge ZnO optical waveguides produced by 15 MeV C^5+ ion irradiation

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