KAWAYAMA Iwao

J-GLOBAL         Last updated: Aug 23, 2019 at 02:57
 
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Name
KAWAYAMA Iwao
Affiliation
Osaka University
Section
Institute of Laser Engineering
Job title
Associate Professor

Research Areas

 
 

Academic & Professional Experience

 
Dec 2012
 - 
Today
Associated professor, Institute of Laser Engineering, Osaka University
 
Apr 2001
 - 
Nov 2012
Assistant professor, Osaka University
 
Oct 2008
 - 
Mar 2012
PRESTO Researcher, JST
 

Education

 
Apr 1997
 - 
Mar 2000
Department of Chemistry, School of Science, Osaka University
 
Apr 1991
 - 
Mar 1995
Department of Chemistry, School of Science, Osaka University
 

Published Papers

 
Non-contact evaluation of electrical passivation of oxidized silicon using laser terahertz emission microscope and corona charging
1) T. Mochizuki, A. Ito, H. Nakanishi, K. Tanahashi, I. Kawayama, M.Tonouchi, K. Shirasawa, and H. Takato
Journal of Applied Physics   125 151615   Apr 2019   [Refereed]
Development of reflection type scanning laser terahertz near-field spectroscopy and imaging system for bio-applications
Kosuke Okada, Kazunori Serita, Hironaru Murakami, Iwao Kawayama, Masayoshi Tonouchi
IEICE technical report   117(364) 21-24   Dec 2017
A Terahertz-Microfluidic Chip with a Few Arrays of Asymmetric Meta-Atoms for the Ultra-Trace Sensing of Solutions
Kazunori Serita, Hironaru Murakami, Iwao Kawayama and Masayoshi Tonouchi
Photonics   6(1)(12)    Jan 2019   [Refereed]
Kazunori Serita, Juraj Darmo, Iwao Kawayama, Hironaru Murakami, Masayoshi Tonouchi
Journal of Infrared, Millimeter, and Terahertz Waves   1-13   Jul 2017   [Refereed][Invited]
Control of dipole properties in high-k and SiO2 stacks on Si substrates with tricolor superstructure
Yasushi Hotta, Iwao Kawayama, Shozo Miyake, Ikuya Saiki, Shintaro Nishi, Kota Yamahara, Koji Arafune, Haruhiko Yoshida, Shin-ichi Satoh, Naomi Sawamoto, Atsushi Ogura, Akira Ito, Hidetoshi Nakanishi, Masayoshi Tonouchi, Hitoshi Tabata
Applied Physics Letters   113(1) 12103   Jul 2018   [Refereed]
Polarization imaging of imperfect m-plane GaN surfaces
Yuji Sakai, Iwao Kawayama, Hidetoshi Nakanishi, Masayoshi Tonouchi
APL Photonics      Apr 2017   [Refereed]
Study of photoexcited-carrier dynamics in GaAs photoconductive switches using dynamic terahertz emission microscopy
Hironaru Murakami, Shogo Fujiwara, Iwao Kawayama, and Masayoshi Tonouchi
Photonics Research   4(3)    May 2016   [Refereed]
Visualization of Photoexcited Carrier Responses in a Solar Cell Using Optical Pump-Terahertz Emission Probe Technique
Nakanishi H, Ito A, Takayama K, Kawayama I, Murakami H, Tonouchi M
SPRINGER   37(5) 498-506   May 2016   [Refereed]
Parallel plate waveguide time domain spectroscopy to study terahertz conductivity of utltrathin materials
M. Razanoelina, F.R. Bagsican, I. Kawayama, X. Zhang, Lulu Ma, H. Murakami, R. Vajtai, P. M. Ajayan, J. Kono, D. M. Mittleman, M. Tonouchi
Advanced Applications in Industry and Defense   Proc. SPIE 9856    Apr 2016   [Refereed]
Laser THz Emission Spectroscopy of Gas Adsorption-Desorption Dynamics in Tungsten Disulfide Nanosheets
Filchito Renee Bagsican, Iwao Kawayama, Hironaru Murakami, Masayoshi Tonouchi, Andrew Winchester, Sujoy Ghosh and Saikat Talapatra
e-Journal of Surface Science and Nanotechnology      Mar 2016   [Refereed]
Probing low-density carriers in a single atomic layer using terahertz parallel-plate waveguides
Manjakavahoaka. Razanoelina, Filchito Renee Bagsican, Iwao Kawayama, Xiang Zhang, Lulu Ma, Hironaru Murakami, Robert Vajtai, Pulickel M. Ajayan, Junichiro Kono, and Masayoshi Tonouchi
Optics Express      Feb 2016
Manjakavahoaka Razanoelina, Kazunori Serita, Eiki Matsuda, Iwao Kawayama, Hironaru Murakami and Masayoshi Tonouchi
Applied Physics Express   9(3) 32002   Feb 2016   [Refereed]
Parallel-Plate Waveguide Terahertz Time Domain Spectroscopy for Ultrathin Conductive Films
M Razanoelina, R. Kinjo, K. Takayama, I. Kawayama, H. Murakami, D. Mittleman, M. Tonouchi
Journal of Infrared, Millimeter, and Terahertz Waves   36(12)    Dec 2015   [Refereed]
S. Roy, K. Serita, I. Kawayama, H. Murakami, Y. Avetisyan, M. Tonouchi
IEICE TRANSACTIONS on Electronics   E98-C(12) 1128-1130   Dec 2015   [Refereed]
Visualization of Photoexcited Carrier Responses in a Solar Cell Using Optical Pump-Terahertz Emission Probe Technique
H. Nakanishi, A. Ito, K. Takayama, I. Kawayama, H. Murakami, M. Tonouchi
Journal of Infrared, Millimeter, and Terahertz waves      Dec 2015   [Refereed]
Measurement of Trace Amounts of Liquid using Metamaterial excited by High Density THz Waves
Eiki Matsuda, Kazunori Serita, Kosuke Okada, Hironaru Murakami, Iwao Kawayama, Masayoshi Tonouchi
IEICE technical report   115(387) 83-88   Dec 2015
Comparison between laser terahertz emission microscope and conventional methods for analysis of polycrystalline silicon solar cell
Hidetoshi Nakanishi, Akira Ito, Kazuhisa Takayama, Iwao Kawayama, Hironaru Murakami, Masayoshi Tonouchi
AIP Advances   5    Nov 2015   [Refereed]
The dynamic process and microscopic mechanism of extraordinary terahertz transmission through perforated superconducting films
Jingbo Wu, Xin Zhang, Biao Jin, Haitao Liu, Yuhui Chen, Zhi-Yuan Li, Caihong Zhang, Lin Kang, Weiwei Xu, Jian Chen, Huabing Wang, Masayoshi Tonouchi, Peiheng Wu
Scientific Reports   5    Oct 2015   [Refereed]
Visualization of GaN surface potential using terahertz emission enhanced by local defects
Yuji Sakai, Iwao Kawayama, Hidetoshi Nakanishi, Masayoshi Tonouchi
Scientific Reports   5    Sep 2015   [Refereed]
Laser Terahertz Emission Spectroscopy of Graphene/InAs Junctions
Bagsican Filchito Renee, Gonzales Jofferson, Zhang Xiang, Ma. Lulu, Kawayama Iwao, Murakami Hironaru, Vajtai Robert, Ajayan Pulickel, Kono Junichiro, Tonouchi Masayoshi
MRS Proceedings   1808    Apr 2015

Conference Activities & Talks

 
レーザーTHz放射顕微鏡による窒化物半導体特異構造の分極マッピング [Invited]
Iwao Kawayama
2019年春季 第66回 応用物理学会春季学術講演会シンポジウム“窒化物半導体特異構造の科学‐ナノ物性評価技術の進展と物性制御   9 Mar 2019   
Terahertz emission spectroscopy and imaging for energy saving material/device development [Invited]
KAWAYAMA Iwao
The 2nd International Conference on Advanced Materials and Processes for Environment, Energy and Health   31 Oct 2018   
Evaluation of semiconductor materials and devices by laser-induced terahertz emissions [Invited]
Iwao Kawayama
SPIE Optical Engineering + Applications Conrerence   Aug 2018   
Terahertz emission spectroscopy of wide band gap semiconductors [Invited]
Iwao Kawayama
Collaborative Conference on Materials Research 2018   Jun 2018   
Intense Terahertz Response of Superconductive Thin Films and Metamaterials [Invited]
Masayoshi Tonouchi, Horonaru Murakami, Iwao Kawayama, Caihong Zhang, Jingbo Wu,Biaobing Jin, Xiaoqing Jia,Lin Kang, Weiwei Xu Huabing Wang, Jian Chen, and Peiheng Wu
The 14th International Workshop of High-Temperature Superconductors in High Frequency Field   Jun 2018   
Probing interface potential of semiconductor heterostructures with laser terahertz emission spectroscopy [Invited]
Iwao Kawayama
The 9th International Symposium on Ultrafast Phenomena and Terahertz Waves   Apr 2018   
A terahertz microfluidic chip for ultra-trace measurement of solution [Invited]
Kazunori Serita, Eiki Matsuda, Kosuke Okada, Hironaru Murakami, Iwao Kawayama, Masayoshi Tonouchi
The 9th International Symposium on Ultrafast Phenomena and Terahertz Waves   Apr 2018   
新電子材料の光・テラヘルツ機能創製と規デバイス応用 [Invited]
Iwao Kawayama
岡山大学 ナノ材料シンポジウム   Jan 2018   
Laser-excited thz system for solar cell evaluation [Invited]
Iwao Kawayama
The 4th International Symposium on Microwave/Terahertz Science and Applications, The 8th International Symposium on Terahertz Nanoscience, Current trends in Optical and X-Ray metrologies of key enabling nanomaterials/devices for the Ubiquitous Society, re   Nov 2017   
New method to estimate oxygen adsorption energy on 2D materials with terahertz emission microscopy [Invited]
Filchito Renee Bagsican, Andrew Winchester, Sujoy Ghosh, Xiang Zhang, Lulu Ma, Minjie Wang, Hironaru Murakami, Saikat Talapatra, Robert Vajtai, Pulickel M. Ajayan, Junichiro Kono, Masayoshi Tonouchi, Iwao Kawayama
The 4th International Symposium on Microwave/Terahertz Science and Applications, The 8th International Symposium on Terahertz Nanoscience, Current trends in Optical and X-Ray metrologies of key enabling nanomaterials/devices for the Ubiquitous Society, re   Nov 2017   
Laser Terahertz Emission Microscopy for Inspection of Solar Cells [Invited]
I. Kawayama
2017 International Symposium for Advanced MaterialsS Research   Aug 2017   
Terahertz Time-Domain Spectroscopy of CVD Graphene in a Wide Temperature Range [Invited]
I. Kawayama
International union of materials research society-International conference of advanced materials 2017   Aug 2017   
Polarization imaging of GaN using laser terahertz emission microscopy [Invited]
I. Kawayama
4th Japan-Korea International Symposium on Materials Science and Technology 2017   Aug 2017   
Terahertz Spectroscopy of Graphene [Invited]
I. Kawayama
Collaborative Conference on Materials Research (CCMR) 2017   Jun 2017   
テラヘルツ顕微鏡で見る省エネルギー材料・デバイス〜持続可能社会の実現に貢献する先端計測技術〜 [Invited]
Iwao Kawayama
生産技術振興協会主催 平成28年度ハイテクセミナー「テラヘルツ波イメージング革命 〜見えないものが見えてくる〜」   9 Nov 2016   
Study on local oxygen absorption/desorption dynamics onto 2D materials probed by potential-sensitive THz radiation [Invited]
M. Tonouchi and I. Kawayama
in The 8th International Symposium on Ultrafast Phenomena and Terahertz Waves, OSA Technical Digest (online) (Optical Society of America, 2016)   Oct 2016   
Parallel Plate Waveguide Terahertz Time Domain Spectroscopy for 2D materials [Invited]
M. Razanoelina, F. R. Bagsican, X. Zhang, L. Ma2 H. Murakami, R. Vajtai, P. M. Ajayan, J. Kono, D. Mittelman, M. Tonouchi and I. Kawayama
IRMMW-THz 2016   Sep 2016   
レーザテラヘルツ放射顕微鏡を用いた吸着・脱離ガス分子のダイナミックセンシグ [Invited]
Iwao Kawayama
低温工学・超電導学会 関西支部講演会   24 May 2016   
Laser terahertz emission microscope for the inspection of semiconductor materials and devices [Invited]
I. Kawayama
Asia-Pacific Laser Symposium   May 2016   
Probing solar cells with a laser terahertz emission microscope [Invited]
I. Kawayama
5th EOS Topical Meeting on Terahertz Science & Technology   May 2016   

Patents

 
特開WO2017/051579 : 膜厚測定装置及び膜厚測定方法(WO)
I. Kawayama
特開20180040636 : 膜厚測定装置及び膜厚測定方法(KR)
I. Kawayama
特開WO2017/051579 : 膜厚測定装置及び膜厚測定方法(CN)
I. Kawayama
特許6489421 : 光強度設定方法、検査方法および検査装置(JP)
I. Kawayama