Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Takahisa Mitsui"'
Autor:
Kenichiro Aoki, Takahisa Mitsui
Publikováno v:
Progress of Theoretical and Experimental Physics. 2023
We observe thermal single-particle dynamics of ions and molecules in water through light extinction. The motions of particles appear as time-dependent intensity variations, characterized through their averaged spectra. The theoretical spectrum derive
Publikováno v:
Applied Physics Express. 14:075503
Autor:
Kenichiro Aoki, Takahisa Mitsui
Publikováno v:
Physical review. E. 99(1-1)
Water, in its three phases, is ubiquitous, and the surface properties of ice is important to clarifying the process of melting, as well as to various other fields, including geophysics. As such, the subject has been studied both theoretically and exp
Autor:
Takahisa Mitsui, Kenichiro Aoki
Spectra of thermal fluctuations of a wide range of interfaces, from liquid/air, viscoelastic material/air, liquid/liquid, to liquid/viscoelastic material interfaces, were measured over 100 Hz to 10 MHz frequency range. The obtained spectra were compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0b46fb4975b206c26e54912d108caf2
Autor:
Takahisa Mitsui, Kenichiro Aoki
Through the study of the power spectra of a monochromatic light beam reflected by metallic mirrors, fluctuations in their reflectance is observed. The power spectra were obtained down to a factor $10^{-6}$ below the Standard Quantum Limit, with a dyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcf4837d330b7a4ed520eeac563ed3e9
http://arxiv.org/abs/1610.07747
http://arxiv.org/abs/1610.07747
Autor:
Kenichiro Aoki, Takahisa Mitsui
Publikováno v:
Review of Scientific Instruments. 89:094302
In the investigations of inhomogeneous media, availability of methods to study the interior of the material without affecting it is valuable. Optical coherence tomography provides such a functionality by providing depth resolved images of semi-transp
Autor:
Kenichiro Aoki, Takahisa Mitsui
Publikováno v:
American Journal of Physics. 76:812-815
A small tabletop experiment for a direct measurement of the speed of light to an accuracy of few percent is described. The experiment is accessible to a wide spectrum of undergraduate students, in particular to students not majoring in science or eng
Publikováno v:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 462:2897-2905
Simultaneous three-way observation of optical, acoustic and electric properties demonstrates a theoretical prediction that a spinning prolate spheroid can spontaneously lose contact with the table in the course of its rising motion when the contact f
Autor:
Masakazu Kunitomo, Tomoji Ogawa, Toshiro Kohmoto, M. Misono, Shigeki Furue, Kazuyuki Nakayama, Takahisa Mitsui, Yukio Fukuda
Publikováno v:
Journal of the Physical Society of Japan. 73:2708-2711
A high-resolution coherent spectroscopy, based on the iterative excitation using the atomic response, is studied. The Zeeman quantum beats in the ground state 3 2 S 1/2 of Na atoms were produced and monitored by optical means. Significant reductions
Autor:
Kenichiro Aoki, Takahisa Mitsui
Publikováno v:
Proceedings of the 12th Asia Pacific Physics Conference (APPC12).
Surface thermal fluctuation spectra are measured to previously unachieved precision, down to three orders of magnitude below the shot noise level. Such precision is achieved through statistical reduction of extraneous noise, including shot noise, usi