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Twenty Seventh International Conference on Infrared and Millimeter Waves最新文献

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Do nonthermal biological effects of millimeter waves exist? 毫米波是否存在非热生物效应?
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076161
Guofen Yu, Shengguang Liu, Wenxiang Wang
{"title":"Do nonthermal biological effects of millimeter waves exist?","authors":"Guofen Yu, Shengguang Liu, Wenxiang Wang","doi":"10.1109/ICIMW.2002.1076161","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076161","url":null,"abstract":"Experimental results of the influence of low intensity millimeter waves on the growth rate of E. coli and the transformation of plasmid DNA to bacteria are given. The possibility of nonthermal effects of millimeter waves is discussed. Suggestions for verifying whether an effect is a nonthermal effect are given.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"50 1","pages":"215-216"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86600883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Discovery of new optically pumped far infrared laser emissions in /sup 12/CD/sub 3/OH and /sup 13/CD/sub 3/OH 在/sup 12/CD/sub 3/OH和/sup 13/CD/sub 3/OH中发现新的光抽运远红外激光发射
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076091
E. Vasconcellos, M. Jackson, M. Lauters, H. Hockel, M. D. Allen, K. Evenson
{"title":"Discovery of new optically pumped far infrared laser emissions in /sup 12/CD/sub 3/OH and /sup 13/CD/sub 3/OH","authors":"E. Vasconcellos, M. Jackson, M. Lauters, H. Hockel, M. D. Allen, K. Evenson","doi":"10.1109/ICIMW.2002.1076091","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076091","url":null,"abstract":"/sup 12/CD/sub 3/OH and /sup 13/CD/sub 3/OH have produced hundreds of far-infrared laser lines in the 22 to 3030 /spl mu/m wavelength region when optically pumped by CO/sub 2/ lasers. In this work, we report the discovery and frequency measurement of optically pumped laser emissions from these molecules in the wavelength range from 45.3 to 103.3 /spl mu/m.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"1 1","pages":"75-76"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76188715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fast GaAs detector for THz radiation 用于太赫兹辐射的快速GaAs探测器
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076180
F. Klappenberger, K. Renk, E. Schomburg, R. Summer, S. Ganichev, W. Prettl
{"title":"Fast GaAs detector for THz radiation","authors":"F. Klappenberger, K. Renk, E. Schomburg, R. Summer, S. Ganichev, W. Prettl","doi":"10.1109/ICIMW.2002.1076180","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076180","url":null,"abstract":"We present a fast detector for THz radiation. The detector consists of a current carrying n doped GaAs crystal built in a corner cube antenna system. Irradiation with THz radiation leads to a reduction of the direct current. We demonstrate the feasibility for detection by analysing single radiation pulses of a TEA CO/sub 2/ laser pumped FIR gas laser.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"10 1","pages":"253-254"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88474197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A numerical analysis of the effects of the packing of microstrip devices with photonic bandgap technique 光子带隙技术对微带器件封装效果的数值分析
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076192
Zhiyuan Yu, Weigan Lin
{"title":"A numerical analysis of the effects of the packing of microstrip devices with photonic bandgap technique","authors":"Zhiyuan Yu, Weigan Lin","doi":"10.1109/ICIMW.2002.1076192","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076192","url":null,"abstract":"A numerical analysis is presented by the finite difference time domain method in this paper. A microstrip with an asymmetric metal bandgap structure which shows an extra-wide stop band is numerically analysed when its package is changed.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"20 1","pages":"277-278"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88518088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared spin orientation and spin-galvanic effect in semiconductor heterostructures 半导体异质结构中的红外自旋取向和自旋电偶效应
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076214
S. Ganichev, W. Prettl
{"title":"Infrared spin orientation and spin-galvanic effect in semiconductor heterostructures","authors":"S. Ganichev, W. Prettl","doi":"10.1109/ICIMW.2002.1076214","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076214","url":null,"abstract":"It is shown that a homogeneous spin-polarized electron gas in semiconductor heterostructures can drive an electric current. Here we report on this spin-galvanic effect where the spin polarization has been achieved by optical orientation applying circularly polarized far-infrared laser radiation. The microscopic origin-of the effect is an inherent asymmetry of spin-flip scattering.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"1 1","pages":"321-322"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91347158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared detection of carrier dynamics in indium antimonide in megagauss fields 超高场中锑化铟载流子动力学的红外探测
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076139
S. Hansel, A. Kirste, H. Mueller, M. von Ortenberg, E. Huseynov
{"title":"Infrared detection of carrier dynamics in indium antimonide in megagauss fields","authors":"S. Hansel, A. Kirste, H. Mueller, M. von Ortenberg, E. Huseynov","doi":"10.1109/ICIMW.2002.1076139","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076139","url":null,"abstract":"We report on magnetotransmission measurements of 10.6 μm radiation through bulk InSb in transient megagauss field pulses. The half period of about 6 μs of the oscillating field is comparable to the characteristic relaxation time in the material. Field reversal between the oscillations demonstrates the strong influence of the \"history\" of the state population within the relaxation time.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"10 1","pages":"171-172"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73361543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Spatio-temporal chaos in a gyrotron resonator with an off-axis electron beam 离轴电子束回旋管谐振腔的时空混沌
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076075
M. Airila
{"title":"Spatio-temporal chaos in a gyrotron resonator with an off-axis electron beam","authors":"M. Airila","doi":"10.1109/ICIMW.2002.1076075","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076075","url":null,"abstract":"The two-dimensional self-consistent time-dependent theory of beam-wave interaction in gyrotron resonators has been modified to account for eccentricity of the annular hollow electron beam. Numerical analysis yields the effect of beam eccentricity on the previously known limiting values of the azimuthal index of the mode, beyond which stationary single-mode operation becomes impossible.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"31 2 1","pages":"43-44"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78087330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Generation of high-frequency radiation in bi-modal electrodynamic system filled by asymmetric multilayer heterostructure 非对称多层异质结构填充的双峰电动力系统高频辐射的产生
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076179
A. Kozyrev
{"title":"Generation of high-frequency radiation in bi-modal electrodynamic system filled by asymmetric multilayer heterostructure","authors":"A. Kozyrev","doi":"10.1109/ICIMW.2002.1076179","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076179","url":null,"abstract":"A method of direct transformation of a video pulse into a radio pulse in a microstrip transmission line (TL) filled with a nonlinear medium on the basis of a multilayer heterostructure (MLHS) with asymmetric barriers (AlAs/n-GaAs/Al/sub x/Ga/sub 1-x/As/n/sup +/GaAs/AlAs)/sub N/ has been suggested by A.M. Belyantsev and A.B. Kozyrev (Int. J. Inf. and MM Waves, vol. 18, p. 1169, 1997). The mechanism for the transformation is the electromagnetic shock-wave (EMSW) front instability towards the forward wave running in synchronism with it. In this paper, we study the special features of the direct transformation of a video pulse into a radio pulse in a bi-modal electrodynamic system of the coupled TL type with different types of dispersion allowing backward wave propagation.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"64 1","pages":"251-252"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81028163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Proposal of a coaxial-cavity gyrotron with tapered guide magnetic field 带锥形导向磁场的同轴腔回旋管的设计
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076147
J. Jin, Shi-Chang Zhang, C. Qiu, Xiaoping Liang
{"title":"Proposal of a coaxial-cavity gyrotron with tapered guide magnetic field","authors":"J. Jin, Shi-Chang Zhang, C. Qiu, Xiaoping Liang","doi":"10.1109/ICIMW.2002.1076147","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076147","url":null,"abstract":"In this paper a gyrotron with tapered guide magnetic field is proposed. The transmission quality of the electron beam in this device is investigated and found to be improved. Simulations show the electronic efficiency of the FZK gyrotron experiment might be increased up to 38.7% by tapering the guide magnetic field.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"18 1","pages":"187-188"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81102921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beam alignment of ECH transmission line using moment method 基于矩量法的ECH传输线波束对准
Twenty Seventh International Conference on Infrared and Millimeter Waves Pub Date : 2002-12-16 DOI: 10.1109/ICIMW.2002.1076129
H. Idei, T. Shimozuma, T. Notake, S. Ito, S. Kubo, M. Shapiro, J. Anderson, R. Temkin, K. Ohkubo
{"title":"Beam alignment of ECH transmission line using moment method","authors":"H. Idei, T. Shimozuma, T. Notake, S. Ito, S. Kubo, M. Shapiro, J. Anderson, R. Temkin, K. Ohkubo","doi":"10.1109/ICIMW.2002.1076129","DOIUrl":"https://doi.org/10.1109/ICIMW.2002.1076129","url":null,"abstract":"In the 84 GHz CPI gyrotron, with a single-stage depressed collector in the TE/sub 15,3/ oscillating mode, a geometric optics Vlasov converter was installed in the tube to convert the mode into a Gaussian beam. The low power test stand where intensity and phase patterns can be measured was prepared at the National Institute for Fusion Science (NIFS). The sizes and tilt angles of quasi-optical beams are deduced from the measured intensity and phase profiles using the moment method. The Gaussian-like beam is coupled into the HE/sub 11/ corrugated waveguide with tilt angle adjustment. The beam radiated from the waveguide after coupling is analyzed with the moment method. The Gaussian content in the radiated beam is also discussed.","PeriodicalId":23431,"journal":{"name":"Twenty Seventh International Conference on Infrared and Millimeter Waves","volume":"10 1","pages":"151-152"},"PeriodicalIF":0.0,"publicationDate":"2002-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88826294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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