Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Akiyoshi Irisawa"'
Autor:
Yasuhide Maehara, Akiyoshi Irisawa, Masaichi Hashimoto, Shigeki Nishina, Takanori Okada, Makoto Shinohara, Motoki Imamura, Tsuyoshi Ataka
Publikováno v:
2016 IEEE 23rd International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA).
It is getting significant to identify the fault location in advanced IC packaging technology. However, challenges have been posed to precisely determine the fault location in the failure analysis process, which is difficult to be handled by the conve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::343d5e9b0d9986c75048006c105184d6
https://doi.org/10.1109/ipfa.2016.7564290
https://doi.org/10.1109/ipfa.2016.7564290
Autor:
Tsuyoshi Ataka, T. Okada, Masaichi Hashimoto, Akiyoshi Irisawa, Shigeki Nishina, Motoki Imamura
Publikováno v:
2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
A time-domain reflectometry (TDR) unit is developed that scans for faults in transmission lines with high spatial resolution by transmitting a terahertz wave pulse down the transmission line and measuring the reflected wave. Photoconductive switches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31953b28e08edd8b54b7802daa564767
https://doi.org/10.1109/irmmw-thz.2015.7327931
https://doi.org/10.1109/irmmw-thz.2015.7327931
Publikováno v:
2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
We developed a terahertz ellipsometry system that can measure the complex dielectric characteristics of doped semiconductors and evaluate the carrier density and mobility in a non-destructive, non-contact way. The system is constructed of optical-fib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28acfd4732f7e00ae54aa83d663b5080
https://doi.org/10.1109/irmmw-thz.2015.7327471
https://doi.org/10.1109/irmmw-thz.2015.7327471
Autor:
Keiichiro Shiraga, Motoki Imamura, Tetsuhito Suzuki, Akiyoshi Irisawa, Yuichi Ogawa, Naoshi Kondo
Publikováno v:
2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The complex dielectric constant of human cultured cell, HeLa, is determined in the terahertz region. Since they are sensitive to picosecond motions, intracellular water dynamics mediated by hydrogen bonds are discussed. As a result, it is suggested t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd3d506ccc54952651a108424e588edf
https://doi.org/10.1109/irmmw-thz.2013.6665883
https://doi.org/10.1109/irmmw-thz.2013.6665883
Autor:
Akiyoshi Irisawa, Motoki Imamura, Tetsuhito Suzuki, Keiichiro Shiraga, Naoshi Kondo, K. Hattori, Yuichi Ogawa
Publikováno v:
2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII).
We demonstrated reflection spectroscopy of human cancer cell, DLD-1, cultured in the liquid medium on the metamaterial. Based on the complex dielectric constant of distilled water and DLD-1 monolayer determined by terahertz time-domain attenuated tot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a05c38c1cfc4bcbbb5ff8cf86101443d
https://doi.org/10.1109/transducers.2013.6626988
https://doi.org/10.1109/transducers.2013.6626988
Publikováno v:
Food chemistry. 140(1-2)
Despite intensive studies regarding the hydration state, experimental investigations have not fully explained the global hydration state. Terahertz (THz) spectroscopy is an emerging technology that has the potential to evaluate global hydration. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5477d892bd1c4d3c42b40cb3cd8b605a
https://pubmed.ncbi.nlm.nih.gov/23578648
https://pubmed.ncbi.nlm.nih.gov/23578648
Publikováno v:
35th International Conference on Infrared, Millimeter, and Terahertz Waves.
We have developed a three-dimensional spectroscopic imaging system that uses terahertz waves and is based on transmission computed tomography. Using this system, we demonstrate transmission three-dimensional computed tomography imaging of high refrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7536386dace8775aba303d01ee06b593
https://doi.org/10.1109/icimw.2010.5612981
https://doi.org/10.1109/icimw.2010.5612981
Publikováno v:
35th International Conference on Infrared, Millimeter, and Terahertz Waves.
We have developed the “3D Imaging Analysis System” that uses terahertz waves, the world's first such system for practical applications. This system has an unprecedented capability for nondestructive three-dimensional spectroscopic analysis of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f8c25d8c7dfeced43903c110ec58163
https://doi.org/10.1109/icimw.2010.5612459
https://doi.org/10.1109/icimw.2010.5612459
Autor:
Akiyoshi Irisawa, Chung-Yuan Mou, Chi-Kuang Sun, Motoki Imamura, Borwen You, Yu-Ru Huang, Shusaku Sato, Kao-Hsiang Liu
Publikováno v:
Optics Letters. 40:2731
We performed a THz absorption spectroscopy study on liquid water confined in mesoporous silica materials, MCM-41-S-18 and MCM-41-S-21, of two different pore sizes at room temperatures. We found that stronger confinement with a smaller pore size cause
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6988800656293360019d7f3cdd5c0c4
https://doi.org/10.1364/ol.40.002731
https://doi.org/10.1364/ol.40.002731
Publikováno v:
Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization.
A practical absolute wavelength meter was assembled separately a reference wavelength source and wavelength measurement system. The frequency (wavelength) stability was obtained to be 2×10-12 for a reference wavelength source. The other hand accurac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70997249e0f1e212b01ecab6e39b9f4b
https://doi.org/10.1117/12.472399
https://doi.org/10.1117/12.472399