Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Koyo Watanabe"'
Publikováno v:
Frontiers in Neuroscience, Vol 16 (2022)
In two-photon microscopy, aberration correction is an essential technique for realizing high resolution in deep regions. A spatial light modulator (SLM) incorporated into an optical system for two-photon microscopy performs pre-compensation on the wa
Externí odkaz:
https://doaj.org/article/02b369e590f84d86aea4334e146e9165
Publikováno v:
Optics Continuum. 2:1053
Coaxial time-resolved spectroscopy (TRS) based on a pump–probe technique using a color-selective double pulse (CSDP) is proposed. The CSDP, generated using an optical pulse shaper (OPS), was composed of different spectral components. Coaxially prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::053c1810617fba4963f25804c4885d21
https://doi.org/10.1364/optcon.483681
https://doi.org/10.1364/optcon.483681
Autor:
Kazuyoshi Hirose, Koyo Watanabe, Hiroki Kamei, Takahiro Sugiyama, Yu Takiguchi, Yoshitaka Kurosaka
Publikováno v:
Optics Letters. 48:1387
Fringe pattern projectors are quite useful for highly accurate three-dimensional (3D) measurement when a projector or LED array is used for illumination. We have fabricated a 0.2 mm × 0.2 mm structured light source, which was an on-chip size surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8de2ea6ee075633db5f9232e15e0c102
https://doi.org/10.1364/ol.484317
https://doi.org/10.1364/ol.484317
Publikováno v:
Optics letters. 46(7)
We demonstrate a method of measuring group refractive indices ( n g ) by using only a temporal waveform of a color-selective multi-pulse (CSMP) generated with a spatial-light-modulator-based optical pulse shaper. Each pulse of the CSMP is characteriz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::505069377eea7098df9e055200418856
https://pubmed.ncbi.nlm.nih.gov/33793479
https://pubmed.ncbi.nlm.nih.gov/33793479
supplemental document
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::097a84343ff8db9d83daeeb0239053b3
Autor:
Takashi Inoue, Koyo Watanabe
Publikováno v:
Optics express. 28(10)
An accurately controlled arbitrary temporal waveform is required for many applications. To realize accurate pulse shaping, many optimization algorithms have been proposed to design spectral phase modulation patterns. However, as far as the authors kn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b7ea1dcd04827229cb6b968bae19b1c
https://pubmed.ncbi.nlm.nih.gov/32403515
https://pubmed.ncbi.nlm.nih.gov/32403515
Autor:
Takahashi Koji, Koyo Watanabe, Hiroshi Satozono, Yoichi Kawada, Takashi Inoue, Hisanari Takahashi, Hironori Takahashi
Publikováno v:
Optics express. 27(18)
We constructed a system that can generate phase-controlled terahertz (THz) pulses using a fan-out periodically poled lithium tantalate crystal and an optical pulse shaper containing a spatial light modulator. The phase of each THz frequency component
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::185054bddc605fa4e032218a5b0a0621
https://pubmed.ncbi.nlm.nih.gov/31510404
https://pubmed.ncbi.nlm.nih.gov/31510404
Publikováno v:
OSA Continuum. 4:1696
A smaller point spread function (PSF) is desirable for high-resolution image acquisition. In two-photon excitation microscopy, the focus size of the excitation light is directly related to the two-photon fluorescence PSF. To achieve a small PSF, we d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1f22d546d8d036d4bb5a284e398f03
https://doi.org/10.1364/osac.419804
https://doi.org/10.1364/osac.419804
Autor:
Koyo Watanabe, Takashi Inoue
Publikováno v:
Optics Express. 28:14807
Techniques to generate a targeted temporal waveform with high accuracy are desirable to extend the application range for pulse shapers. In this study, a target energy adjustment mechanism is applied to the input-output iterative Fourier transform alg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43cf3d6069fdf21ec131b9d13adec6b7
https://doi.org/10.1364/oe.393775
https://doi.org/10.1364/oe.393775
Publikováno v:
Biomedical Optics Express
We observe adhesion sites of a cell on a substrate with high resolution. Since this observation requires interfacial measurements between the cell and the substrate, we employ scanning localized surface plasmon microscopy. We experimentally show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::463e68e480aa7d12576abcc2a6515b2c
https://ousar.lib.okayama-u.ac.jp/48982
https://ousar.lib.okayama-u.ac.jp/48982