Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Koji Tenjimbayashi"'
Publikováno v:
Comptes Rendus. Physique
Comptes Rendus. Physique, Académie des sciences (Paris), 2002, 3, pp.1445-1450. ⟨10.1016/S1631-0705(02)01406-8⟩
Comptes Rendus. Physique, Académie des sciences (Paris), 2002, 3, pp.1445-1450. ⟨10.1016/S1631-0705(02)01406-8⟩
International audience; We propose a comprehensive treatment of theta microscopy based on dipole emission, which better describes fluorescence emission than the isotropic emission model, as fluorescence emission is often polarized. Formulas describin
Autor:
Kiyofumi Matsuda, Chandra Shakher, Koji Tenjimbayashi, Chandra Shekhar Kumar, Santosh Kumar, Anil Kumar Nirala
Publikováno v:
Journal of Optics. 30:45-49
In this paper a method for producing perfectly symmetric random scatter plate is described. The developed scatter plate has been used in Scatter Plate Interferometry for testing of aberrations of spherical surface. An attempt has also been made to in
Autor:
Jari Räsänen, Kiyofumi Matsuda, Kazi Monowar Abedin, Koji Tenjimbayashi, Tomoaki Eiju, Kai-Erik Peiponen
Publikováno v:
Review of Scientific Instruments. 69:1587-1590
Scatter plate interferometers provide a precise method to test the quality of concave mirrors. In this article we describe a method to integrate a scatter plate and a projection lens into a single binary micro-optical element, which is a crucial part
Autor:
Kiyofumi Matsuda, Tomoaki Eiju, Koji Tenjimbayashi, Jari Räsänen, Kazi Monowar Abedin, Kai-Erik Peiponen
Publikováno v:
Optics Communications. 143:1-4
We have fabricated a computer-generated point symmetrical scatter plate with a negligible symmetry error for a scatter plate interferometer using electron beam writing equipment. The feature size of the scatterers in the scatter plate was 5 μm. The
Autor:
Hiromitsu Furukawa, Koji Tenjimbayashi
Publikováno v:
Applied Physics Letters. 80:192-194
We demonstrated light propagation in a type of optical waveguide, which consisted of periodically arrayed dielectric particles. Although the form is similar to a photonic crystal waveguide, our method used resonance frequencies instead of band-gap fr
Autor:
Koji Tenjimbayashi
Publikováno v:
Journal of the Japan Society for Precision Engineering. 56:2316-2320
A new type of hologram interferometer for null-testing and measuring a paraboloidal mirror configuration is proposed. In the interferometer a hologram causes a spherical reference wavefront which interferes with a spherical wavefront reflected by a p
Autor:
Koji Tenjimbayashi, Hiromitsu Furukawa
Publikováno v:
SPIE Proceedings.
The straightness of a linear stage consists of three rotation angle errors and two lateral displacement errors. We show a novel straightness measurement system by using laser beams, simple optical components and position sensing devices.
Publikováno v:
Proceedings of ICICS, 1997 International Conference on Information, Communications and Signal Processing. Theme: Trends in Information Systems Engineering and Wireless Multimedia Communications (Cat. No.97TH8237).
A digital speckle pattern interferometric system to monitor surface vibrations and out of plane tilt is presented. The resolution of the system used to measure the out of plane displacement is 1/2 per fringe.
Autor:
Koji Tenjimbayashi
Publikováno v:
SPIE Proceedings.
The straightness of a moving table consists of three rotation angle errors and two lateral displacement errors. It is well known that two lateral displacement errors can be measured by using one corner cube mirror. We have already shown theoretically
Autor:
Koji Tenjimbayashi, Hiromitsu Furukawa
Publikováno v:
SPIE Proceedings.
We demonstrate light propagation in a novel type of optical waveguide, which consisting of periodically arrayed dielectric particles. Advantages provided by this waveguide are that dynamic optical interconnection can be realized and that a multichann