Zobrazeno 1 - 10
of 257
pro vyhledávání: '"Osami Sasaki"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract This study introduces a technique for generating stochastic electromagnetic (SEM) beams using a modified degenerate cavity laser in which one mirror is substituted with a spatial light modulator (SLM). We propose two methods to manipulate th
Externí odkaz:
https://doaj.org/article/2569a1e0f1784e95be0d74a0e6c1c245
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-7 (2024)
Inaccurate wavelength calibration for spectral-domain optical coherence tomography (SD-OCT) generates a depth-dependent broadening of coherence peak. In this paper, a simple technique is proposed to eliminate the wavelength calibration error by the s
Externí odkaz:
https://doaj.org/article/a073c47c1d384a0381b19568d1f9c5e9
Publikováno v:
Optical Technology and Measurement for Industrial Applications Conference 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfda4844c77231261f1cac772c77d37f
https://doi.org/10.1117/12.2660168
https://doi.org/10.1117/12.2660168
Publikováno v:
Optics Continuum. 2:683
Measurements of phase refractive indexes of thick objects by using fitting method have been reported in many papers, but the fitting method produces errors in the fitted coefficients of a fitting function. In this paper it is made clear that the thic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b10c9586950849f2bee04e7eb9b75f
https://doi.org/10.1364/optcon.482318
https://doi.org/10.1364/optcon.482318
Publikováno v:
IEEE Journal of Quantum Electronics. 56:1-6
We investigate intracavity second harmonic generation (SHG) in a degenerate laser for generating green laser with controllable degree of coherence. It is shown that spatial coherence of the SHG emission can be controlled by varying the diameter of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2a9c12703731c44e8e7391fefcdc9de
https://doi.org/10.1109/jqe.2019.2958372
https://doi.org/10.1109/jqe.2019.2958372
Publikováno v:
Twelfth International Conference on Information Optics and Photonics.
We present accurate signal processing techniques based on the continuous wavelet transform (CWT) for nonstationary optical coherence tomography (OCT) interference signals. OCT is attracting considerable attention in the clinical, scientific, and engi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::752c904c70d35de3fde714292b90705e
https://doi.org/10.1117/12.2606987
https://doi.org/10.1117/12.2606987
Publikováno v:
Optical Metrology and Inspection for Industrial Applications VIII.
A high resolution spectrum analyzer is required to measure a large thickness of a glass plate with a spectral resolved interferometer. In order to solve this requirement, two positions of a reference surface are used to produce short optical differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e860ce6fff4a3dc25fbf92fa6f8bea2
https://doi.org/10.1117/12.2601233
https://doi.org/10.1117/12.2601233
Publikováno v:
Optics Continuum. 1:2287
Vortex beams (VBs), a type of light beam with a spiral wavefront, have unique properties, such as the orbit angular momentum (OAM), and diverse applications in optical communications and optical trapping and tweezers. Therefore, accurate measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd4469398a460c96ba808ad81eed2739
https://doi.org/10.1364/optcon.473876
https://doi.org/10.1364/optcon.473876
Publikováno v:
Optics Communications. 431:51-57
In swept source optical coherence tomography (SSOCT), the imaging depth range sometimes limits its application, such as the whole eye measurement. The methods of extending depth range usually need to redesign the system or add some additional devices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68f1a03f7d24bb50081ffab8a3b4a868
https://doi.org/10.1016/j.optcom.2018.08.080
https://doi.org/10.1016/j.optcom.2018.08.080
Publikováno v:
Optics Letters. 47:1871
In this study, a novel, to the best of our knowledge, external-cavity laser diode (ECLD) without a diffraction grating is proposed and demonstrated. In the proposed configuration, an acousto-optic deflector (AOD) acts not only as a deflector but also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d51b5a8d84d5438c66d6900b216aa9b4
https://doi.org/10.1364/ol.454021
https://doi.org/10.1364/ol.454021