Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Nakajima, Yoshiaki"'
Autor:
Miyamura, Shogo, Higaki, Masayuki, Taue, Shuji, Nakajima, Yoshiaki, Tokizane, Yu, Hase, Eiji, Minamikawa, Takeo, Yasui, Takeshi
Refractive-index (RI) sensing plays a pivotal role in various domains, encompassing applications like glucose sensing, biosensing, and gas detection. Despite the advantages of optical fiber sensors, such as their compact size, flexibility, and immuni
Externí odkaz:
http://arxiv.org/abs/2405.07127
System logs are some of the most important information for the maintenance of software systems, which have become larger and more complex in recent years. The goal of log-based anomaly detection is to automatically detect system anomalies by analyzin
Externí odkaz:
http://arxiv.org/abs/2402.10397
Autor:
Shibuya, Kyuki, Nawata, Kouji, Nakajima, Yoshiaki, Fu, Yuxi, Takahashi, Eiji J., Midorikawa, Katsumi, Yasui, Takeshi, Minamide, Hiroaki
We demonstrate an efficient procedure for terahertz-wave radiation generation by applying a nonlinear wavelength conversion approach using a mid-infrared pump source. We used a 3.3 {\mu}m dual-chirped optical parametric amplification source and a 1.5
Externí odkaz:
http://arxiv.org/abs/2102.08631
Autor:
Mizuno, Takahiko, Nakajima, Yoshiaki, Hata, Yuya, Tsuda, Takuya, Asahara, Akifumi, Kato, Takashi, Minamikawa, Takeo, Yasui, Takeshi, Minoshima, Kaoru
Publikováno v:
Optics Express, Vol. 29, Issue 4, pp. 5018-5032 (2021)
Dual-comb microscopy (DCM), an interesting imaging modality based on the optical-frequency-comb (OFC) mode and image pixel one-to-one correspondence, benefits from scan-less full-field imaging and simultaneous confocal amplitude and phase imaging. Ho
Externí odkaz:
http://arxiv.org/abs/2007.12800
Autor:
Ma, Yuxuan, Xu, Bo, Ishii, Hirotaka, Meng, Fei, Nakajima, Yoshiaki, Matsushima, Isao, Schibli, Thomas R., Zhang, Zhigang, Minoshima, Kaoru
We demonstrate two fully and tightly phase locked 750 MHz ytterbium (Yb) fiber frequency combs that are independently stabilized to a continuous wave (CW) laser with <1 rad RMS phase error. A bulk EOM and a single stack PZT are separately utilized as
Externí odkaz:
http://arxiv.org/abs/1805.11045
Autor:
Oe, Roy, Taue, Shuji, Minamikawa, Takeo, Nagai, Kosuke, Mizutani, Yasuhiro, Iwata, Tetsuo, Yamamoto, Hirotsugu, Fukano, Hideki, Nakajima, Yoshiaki, Minoshima, Kaoru, Yasui, Takeshi
Publikováno v:
Optics Express Vol. 26, Issue 15, pp. 19694-19706 (2018)
Optical frequency combs have attracted attention as optical frequency rulers due to their tooth-like discrete spectra together with their inherent mode-locking nature and phase-locking control to a frequency standard. Based on this concept, their app
Externí odkaz:
http://arxiv.org/abs/1802.04261
Autor:
Hase, Eiji, Minamikawa, Takeo, Miyamoto, Shuji, Ichikawa, Ryuji, Hsieh, Yi-Da, Shibuya, Kyuki, Nakajima, Yoshiaki, Asahara, Akifumi, Minoshima, Kaoru, Mizutani, Yasuhiro, Iwata, Tetsuo, Yamamoto, Hirotsugu, Yasui, Takeshi
Publikováno v:
Optica Vol. 5, Issue 5, pp. 634-643 (2018)
Confocal imaging and phase imaging are powerful tools in life science research and industrial inspection. To coherently link the two techniques with different depth resolutions, we introduce an optical frequency comb (OFC) to microscopy. Two-dimensio
Externí odkaz:
http://arxiv.org/abs/1705.07236
Autor:
Yasuda, Masami, Kohno, Takuya, Inaba, Hajime, Nakajima, Yoshiaki, Hosaka, Kazumoto, Onae, Atsushi, Hong, Feng-Lei
Publikováno v:
J. Opt. Soc. Am. B, 2010 (ID 125081)
A frequency-stabilized light source emitting at 556 nm is realized by frequency-doubling a 1112-nm laser, which is phase-locked to a fiber-based optical frequency comb. The 1112-nm laser is either an ytterbium (Yb)-doped distributed feedback fiber la
Externí odkaz:
http://arxiv.org/abs/1005.3152
Autor:
Kohno, Takuya, Yasuda, Masami, Hosaka, Kazumoto, Inaba, Hajime, Nakajima, Yoshiaki, Hong, Feng-Lei
Publikováno v:
Appl. Phys. Express 2 (2009) 072501
We demonstrate a one-dimensional optical lattice clock with ultracold 171Yb atoms, which is free from the linear Zeeman effect. The absolute frequency of the 1S0(F = 1/2) - 3P0(F = 1/2) clock transition in 171Yb is determined to be 518 295 836 590 86
Externí odkaz:
http://arxiv.org/abs/0906.3664
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2009 Oct . 106(43), 18385-18389.
Externí odkaz:
https://www.jstor.org/stable/25593016