Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Minoru Niigaki"'
Publikováno v:
Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dedaa85f77a65894f5a8fb1fc25f81d
https://doi.org/10.1117/12.2611065
https://doi.org/10.1117/12.2611065
Autor:
Minoru Niigaki, Nobuharu Suzuki, Hiroyuki Takatsuka, Hideaki Suzuki, Haruyasu Kondoh, Shoichi Uchiyama, Yasuo Ohishi, Yasufumi Takagi, Kazuyoshi Okano, Hirofumi Kan
Publikováno v:
physica status solidi c. 4:2850-2853
We have designed and fabricated new photo-tubes and photomultiplier tubes (PMTs) using InxGa1-xN films as photocathodes. Longer spectral cutoffs were controlled with Indium compositions x, from 365 nm to 430 nm. The calibrated maximum quantum efficie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4381cd1735f11f0bee7229d6722ec4c
https://doi.org/10.1002/pssc.200674776
https://doi.org/10.1002/pssc.200674776
Autor:
Hirofumi Miyajima, Teruo Hiruma, Yujin Zheng, You Wang, Minoru Niigaki, Hirofumi Kan, Shinichi Matsuoka, Hiroyuki Kubomura, Hirotake Fukuoka
Publikováno v:
Physics Letters A. 360:659-663
We report the approaches of output improvement for a cesium vapor laser, which was pumped by a volume-Bragg-grating (VBG) coupled broad-area laser-diode-array (LDA) with the quasi-continuous-wave (QCW) drive mode, in adopting an appropriate heating p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fb2929d9dc1523ada67411ae369c917
https://doi.org/10.1016/j.physleta.2006.08.080
https://doi.org/10.1016/j.physleta.2006.08.080
Publikováno v:
Journal of the Spectroscopical Society of Japan. 52:249-259
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a987835bf581b0328ee2bc50beb245e8
https://doi.org/10.5111/bunkou.52.249
https://doi.org/10.5111/bunkou.52.249
Autor:
Yasuyoshi Watanabe, Minoru Niigaki, Yosky Kataoka, Toru Hirohata, Yilong Cui, Aya Yamagata, Noboru Oishi
Publikováno v:
Biochemical and Biophysical Research Communications. 285:1007-1011
Living organisms have been known to spontaneously emit ultraweak photons in vivo and in vitro. Origin of the photon emission remains unclear, especially in the nervous system. The spontaneous ultraweak photon emission was detected here from cultured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f01ae338e506408ced32a6663a513a47
https://doi.org/10.1006/bbrc.2001.5285
https://doi.org/10.1006/bbrc.2001.5285
Publikováno v:
Japanese Journal of Applied Physics. 46:L630-L632
We have fabricated a novel photocathode with a subwavelength-size emission area for the detection of near-infrared light. The photocathode exhibits a p/n diode structure loaded with a grating-structured electrode with a window for electron emission i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee1d414d0b8d537f45a7030809b4beee
https://doi.org/10.1143/jjap.46.l630
https://doi.org/10.1143/jjap.46.l630
Autor:
Hirofumi Kan, Minoru Niigaki, Y Ishigami, Yoichiro Nakanishi, Masashi Ohta, Tomuo Yamaguchi, Shoichi Uchiyama
Publikováno v:
Journal of Crystal Growth. :448-451
Uniform and smooth aluminum nitride (AlN) films have been grown on 2 in (0 0 0 1)sapphire substrates by a magnetron sputtering method. The crystal quality was measured by four-crystal X-ray reflectance diffraction, SEM images, RHEED patterns and so o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10b2c3bfaf2d84585eb68ed5d5d72b21
https://doi.org/10.1016/s0022-0248(98)00328-5
https://doi.org/10.1016/s0022-0248(98)00328-5
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
We report high-efficiency visible light emission (λ=600–690 nm) from aggregated 4-dicyanomethylene-2-methyl-6-p-dimethylaminostyryl-4H-pyran (DCM) dye micrograins excited by infrared light (λex = 805 nm). The light-emitting regions were localized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f82cec65b9cb65f75ffc2c172720fe3b
https://doi.org/10.2351/1.5062568
https://doi.org/10.2351/1.5062568
Publikováno v:
SPIE Proceedings.
We demonstrate filtering characteristics of a polymer notch filter (PNF) with highly-ordered microphase-separated structure of block copolymers (BCPs). This PNF is characterized by an Optical Density > 5 blocking at the center wavelength and narrow b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01d8c0ad5084834462527fcbd0a49b33
https://doi.org/10.1117/12.903540
https://doi.org/10.1117/12.903540
Publikováno v:
2009 22nd International Vacuum Nanoelectronics Conference.
A field-assisted photocathode is the only existing one that has high sensitivity at the wavelength beyond 1100nm [1]–[12]. The photomultiplier tubes (PMTs) with the field-assisted photocathode have been widely used for the low light level detection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6ed70a3337766ce2fedd73c5445eec4
https://doi.org/10.1109/ivnc.2009.5271832
https://doi.org/10.1109/ivnc.2009.5271832