Name: ARAYA Akito,
Position:Associate Professor
Division/Center: Center for Geophysical Observation and Instrumentation
Research Area: geophysical instrumentation and observation

Last Update 05/16 2014

Research:

My research is to develop highly-sensitive geophysical instruments using optical methods such as laser interferometry, and use them for seismic and geodetic observations. Long-baseline laser strainmeters, a compact absolute gravimeter, optical-fiber-linked seismometers and tiltmeters have been developed. Improvement in measurement accuracy and observation at new frontier site have been enabled.

Publications:

A. Araya, S. Telada, K. Tochikubo, S. Taniguchi, R. Takahashi, K. Kawabe, D. Tatsumi, T. Yamazaki, S. Kawamura, S. Miyoki, S. Moriwaki, M. Musha, S. Nagano, M.-K. Fujimoto, K. Horikoshi, N. Mio, Y. Naito, A. Takamori, and K. Yamamoto, Absolute-length determination of a long-baseline Fabry-Perot cavity by means of resonating modulation sidebands, Appl. Opt., 38, 13, 2848--2856, 1999.

A. Araya, T. Kunugi, Y. Fukao, I. Yamada, N. Suda, S. Maruyama, N. Mio, and S. Moriwaki, Iodine-stabilized Nd:YAG laser applied to a long-baseline interferometer for wideband earth strain observations, Rev. Sci. Instrum., 73, 6, 2434--2439, 2002.

Araya, A., W. Morii, H. Hayakawa, A. Takamori, T. Uchiyama, M. Ohashi, I. Yamada, S. Telada, and S. Takemoto, Broadband observation with laser strainmeters and a strategy for high resolution long-term strain observation based on quantum standard, J. Geod. Soc. Japan, 53, 2, 81--97, 2007.

Araya, A., A. Takamori, W. Morii, H. Hayakawa, T. Uchiyama, M. Ohashi, S. Telada and S. Takemoto, Analyses of far-field coseismic crustal deformation observed by a new laser distance measurement system, Geophys. J. Int., 181, 127--140, 2010.

新谷昌人・西川泰弘・堀輝人・小林直樹・白石浩章・鹿熊英昭・石原吉明, 超高感度広帯域地震計による惑星内部モニタ, 日本惑星科学会誌, 21, 3, 289--293, 2012.

新谷昌人・坪川恒也, 小型絶対重力計の開発, 月刊地球, 32, 4, 271--277, 2010.

新谷昌人, 長基線レーザー干渉計による地殻ひずみの精密観測, 精密工学会誌, 77, 4, 367--371, 2011.

A. Araya, T. Kanazawa, M. Shinohara, T. Yamada, H. Fujimoto, K. Iizasa, and T. Ishihara, Gravity gradiometer implemented in AUV for detection of seafloor massive sulfides, Proceedings of the OCEANS 2012 IEEE Hampton Roads Conference & Exhibition, 120601-087, , 2012.