Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Ichiro, Shoji"'
Autor:
Ichiro Shoji
Publikováno v:
Nonlinear Frequency Generation and Conversion: Materials and Devices XXI.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2c715a0ae83f2ab6cd573f4df7c1a3c
https://doi.org/10.1117/12.2612479
https://doi.org/10.1117/12.2612479
Publikováno v:
Optica Advanced Photonics Congress 2022.
We absolutely measure the second-order nonlinear-optical coefficients of LaBGeO5 at the fundamental wavelength of 532 nm. The determined coefficients are d33=1.15, d22=1.41, d31=d32=0.75 and d11=0.55 pm/V, which are inconsistent with those previously
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dc6859ec26a9c1041657c8829421559
https://doi.org/10.1364/bgppm.2022.jtu2a.24
https://doi.org/10.1364/bgppm.2022.jtu2a.24
Publikováno v:
Optica Advanced Photonics Congress 2022.
We made direct measurements of temperature-dependent refractive indices of undoped and MgO-doped stoichiometric LiTaO3 to obtain the Sellmeier equations. The thermo-optic coefficients are much larger than those reported by indirect measurements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6700f8e42b0e8c7658da81cc0464f5c2
https://doi.org/10.1364/noma.2022.noth2e.3
https://doi.org/10.1364/noma.2022.noth2e.3
Publikováno v:
2021 7th International Workshop on Low Temperature Bonding for 3D Integration (LTB-3D).
Improved fabrication process enables us to reduce the internal scattering loss of a quasi-phase-matching (QPM) stack of multiple GaAs thin plates. This is accomplished by setting GaAs plates on YAG crystals with laser-grade flat surfaces. The loss pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5725e5d53ed3ad558c2720a7b1d52cac
https://doi.org/10.1109/ltb-3d53950.2021.9598399
https://doi.org/10.1109/ltb-3d53950.2021.9598399
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
GaAs is a promising material to realize high-power wavelength conversion in mid-IR region because of its wide transparency up to 17 µm, more than 6 times higher nonlinear-optical coefficient than that of LiNbO 3 , and high thermal conductivity of 46
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b173921dd2f44e6ea04ea384981fd58
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542708
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542708
Publikováno v:
OSA Advanced Photonics Congress 2021.
Improved room-temperature-bonding process enables us to reduce the internal scattering loss of a quasi-phase-matching stack of 25 GaAs plates. This is accomplished by setting GaAs plates on YAG crystals with laser-grade flat surfaces.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e675384b46b5de6eb09925f02e5c099
https://doi.org/10.1364/noma.2021.now2a.5
https://doi.org/10.1364/noma.2021.now2a.5
Publikováno v:
OSA Advanced Photonics Congress 2021.
We accurately measure the second-order nonlinear-optical coefficients of LaBGeO5 at the fundamental wavelength of 532 nm using the wedge technique. The determined of d33 and d22 are 1.15 and 1.41 pm/V, respectively.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63a5dae290c0acd037af4bbc1516bb10
https://doi.org/10.1364/noma.2021.now2a.6
https://doi.org/10.1364/noma.2021.now2a.6
Autor:
Jean-François Roux, Hiroaki Minamide, Dominique Lupinski, Benoît Boulanger, Ichiro Shoji, Patricia Segonds, Hiromasa Ito, Jean-Louis Coutaz, Peter G. Schunemann, Jérôme Debray, Zhang Xinyuan, Emilie Hérault, Kevin T. Zawilski, Jiyang Wang, Cyril Bernerd
Publikováno v:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX.
We identified eight nonlinear crystals enabling THz emission from quadratic phase-matched Difference-Frequency-Generation: YCOB, BNA, LBO, CSP, AGS, CdSe, ZnO and GaP. For all these crystals, we performed Time-Domain Spectroscopy in the same conditio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e1e889aa5a09dc3aa202b62cd15e5db
https://doi.org/10.1117/12.2550505
https://doi.org/10.1117/12.2550505
Autor:
Tokuyuki Teraji, Tatsuya Honbu, Kimiyoshi Ichikawa, Daisuke Takeuchi, Ichiro Shoji, Masahiko Ogura, Toshiharu Makino, Shinya Ohmagari, Hiromitsu Kato
Publikováno v:
Diamond and Related Materials. 117:108463
The density of dislocations that occur in the intrinsic (i-) layer of a pin diamond diode was estimated from two-photon excitation photoluminescence (2PPL) imaging. Results elucidated data obtained from device characteristic measurements and cathodol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::867d371610b7fcdc08fe648c11c9aa10
https://doi.org/10.1016/j.diamond.2021.108463
https://doi.org/10.1016/j.diamond.2021.108463
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We have suceeded in measuring the velocity of cerebrospinal fluid in shunt system using the laser-two-focus velocimeter. This is accomplished by inserting air lumps in the shunt tube which move together with the fluid.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1911b6528621b8257ca06ec112fff126
https://doi.org/10.1364/cleopr.2020.p3_22
https://doi.org/10.1364/cleopr.2020.p3_22