Zobrazeno 1 - 10
of 3 873
pro vyhledávání: '"M. Katoh"'
Autor:
Y. Hikosaka, T. Kaneyasu, S. Wada, H. Kohguchi, H. Ota, E. Nakamura, H. Iwayama, M. Fujimoto, M. Hosaka, M. Katoh
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Synchrotron radiation, emitted by relativistic electrons traveling in a magnetic field, has poor temporal coherence. However, recent research has proved that time-domain interferometry experiments, which were thought to be enabled by only la
Externí odkaz:
https://doaj.org/article/322ae16ec94b4e93a1a4e04a825c6c45
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract We present a new realization of the time-domain double-slit experiment with photoelectrons, demonstrating that spontaneous radiation from a bunch of relativistic electrons can be used to control the quantum interference of single-particles.
Externí odkaz:
https://doaj.org/article/13470eb748134c53b4318e91bdcb1e59
Autor:
T. Kaneyasu, M. Hosaka, A. Mano, Y. Takashima, M. Fujimoto, E. Salehi, H. Iwayama, Y. Hikosaka, M. Katoh
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract We verify that each wave packet of spontaneous radiation from two undulators placed in series has a double-pulsed temporal profile with pulse spacing which can be controlled at the attosecond level. Using a Mach–Zehnder interferometer oper
Externí odkaz:
https://doaj.org/article/4af5b4a8ef374ba085da0ef80a1747fb
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-3 (2021)
Externí odkaz:
https://doaj.org/article/13d60e04300a4627a72b3508efb851f1
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-5 (2019)
Synchrotron light sources have wide range of tunable parameters like frequency, intensity. Here the authors demonstrate quantum control of Rydberg states of helium using delay controlled XUV wavepackets generated from synchrotron radiation.
Externí odkaz:
https://doaj.org/article/d589294686084a3b94b3b476ffaa9f5a
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 33-38 (2017)
This study attempted to classify three coniferous and ten broadleaved tree species by combining airborne laser scanning (ALS) data and multispectral images. The study area, located in Nagano, central Japan, is within the broadleaved forests of the Af
Externí odkaz:
https://doaj.org/article/6e40a5ba165046a1b271970eb9424f5b
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 27-31 (2017)
Using terrestrial laser scanning (TLS), forest attributes such as diameter at breast height (DBH) and tree location can be measured accurately. However, due to low penetration of laser pulses to tree tops, tree height measurements are typically under
Externí odkaz:
https://doaj.org/article/9d906cf7c0d3453bbbd5a984679f3f47
Autor:
M. Katoh, S. Deng, Y. Takenaka, K. Cheung, K. Oono, M. Horisawa, J. Hyyppä, X. Yu, X. Liang, Y. Wang
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 95-100 (2017)
Currently, the authors are planning to launch a consortium effort toward Japan’s first smart precision forestry project using laser data and to develop this technology throughout the country. Smart precision forestry information gathered using the
Externí odkaz:
https://doaj.org/article/647b95bcc8994fa0a1c09d7e07bea89b
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W3, Pp 181-184 (2017)
Pine wilt disease is caused by the pine wood nematode (Bursaphelenchus xylophilus) and Japanese pine sawyer (Monochamus alternatus). This study attempted to detect damaged pine trees at different levels using a combination of airborne laser scanning
Externí odkaz:
https://doaj.org/article/00d9cafb60964369b9948add5999c4c6
Autor:
M. Katoh, M. Fujimoto, N. S. Mirian, T. Konomi, Y. Taira, T. Kaneyasu, M. Hosaka, N. Yamamoto, A. Mochihashi, Y. Takashima, K. Kuroda, A. Miyamoto, K. Miyamoto, S. Sasaki
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract We theoretically show that a single free electron in circular motion radiates an electromagnetic wave possessing helical phase structure, which is closely related to orbital angular momentum carried by it. We experimentally demonstrate it by
Externí odkaz:
https://doaj.org/article/dd792bd00149428eb46e03d212ed775e