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1981 International Conference on Submillimeter Waves and Their Applications最新文献

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Cerenkov Raman Free Electron Lasers 切伦科夫拉曼自由电子激光器
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335221
J. Walsh, S. von Laven, J. Branscum, R. Layman
{"title":"Cerenkov Raman Free Electron Lasers","authors":"J. Walsh, S. von Laven, J. Branscum, R. Layman","doi":"10.1109/ICSWA.1981.9335221","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335221","url":null,"abstract":"A Cerenkov Raman laser consists of a relativistic electron beam, a dielectric resonator and a rippled magnetic field undulator. In may respects, the device is similar to the usual free electron laser which makes no use of a slow wave structure but it differs in a few important aspects.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121864248","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
The Transmission Spectra of Some Potential Radome Materials for Millimetre and Near Millimetre Wavelength Applications 一些潜在天线罩材料在毫米波和近毫米波中的透射光谱
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335183
J. Birch, J. Dromey, R. Street
{"title":"The Transmission Spectra of Some Potential Radome Materials for Millimetre and Near Millimetre Wavelength Applications","authors":"J. Birch, J. Dromey, R. Street","doi":"10.1109/ICSWA.1981.9335183","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335183","url":null,"abstract":"The power transmission spectra between about 90 and 900 GHz of some woven materials that have been considered for use as the radome in the UK millimetre wavelength telescope facility will be presented. The various electromagnetic and mechanical factors that determine the suitability of such materials for this application will be discussed.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116829946","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
Magnetic Resonant Three Dimensional Kinetic Theory of the Free Electron Laser with Waveguide Cavity 波导腔自由电子激光器的磁共振三维运动理论
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335209
Chun-yi Wang, Duen-Foo Li
{"title":"Magnetic Resonant Three Dimensional Kinetic Theory of the Free Electron Laser with Waveguide Cavity","authors":"Chun-yi Wang, Duen-Foo Li","doi":"10.1109/ICSWA.1981.9335209","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335209","url":null,"abstract":"Vlasov kinetic theory of F E L employing waveguide laser cavity and helical pump is presented. Distinct from the former theories(1-5) this paper has taken into consideration theinfluence of the longitudinal magnetic field and the 3-d structure of the scattered field with the method of plasma kinetic theory. The spatial growth rate formula for the case of magnetic resonance is derived. The results show that the 3-d structure of the field has harmful influence on gain and would even cancel the instability altogether under certain conditions. A condition for eliminating the harmful effect and obtaining the maximum gain is derived and a suggestion employing hollow beams with small wall thickness is made. This theory is a generalization of that by P. Sprangle and R. A. Smith(5) in consideration of the longitudinal field and the 3-d structure of the scattered field.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124821920","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 Free-Electron Traveling Wave Tube 自由电子行波管
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335223
L. Davis, G. Patsakos
{"title":"A Free-Electron Traveling Wave Tube","authors":"L. Davis, G. Patsakos","doi":"10.1109/ICSWA.1981.9335223","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335223","url":null,"abstract":"A device for the amplification and generation of the unguided TM01 gaussian mode of radiation by int eraction of a beam of electrons with the longitudinal electric field of the mode is proposed. Such a device requires that the average electron velocity be greater than the phase velocity of the radiation. Methods for achieving a reduction in the phase velocity of a millimeter wave mode in an open structure are discussed.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128885611","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
On the Submillimeter-Response of a Quasi-Free Carrier Gas in the Presence of a Strong Magnetic Field 准自由载气在强磁场作用下的亚毫米响应
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335121
M. von Ortenberg
{"title":"On the Submillimeter-Response of a Quasi-Free Carrier Gas in the Presence of a Strong Magnetic Field","authors":"M. von Ortenberg","doi":"10.1109/ICSWA.1981.9335121","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335121","url":null,"abstract":"The high-magnetic field anomaly in the dielectric response function for submillimeter radiation interacting with a quasi-free carrier system as predicted by Goetze and Hajdu (J.Phys; Cll, 3993 (1978))could not be confirmed experimentally as demonstrated by corresponding experiments in InSb in fields up to 20 Tesla.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"15 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127646077","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
Detector and Mixer Technology for Millimeter Waves 毫米波探测与混频器技术
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335143
L. Whicker, M. Nisenoff, D. Webb, B. Spielman
{"title":"Detector and Mixer Technology for Millimeter Waves","authors":"L. Whicker, M. Nisenoff, D. Webb, B. Spielman","doi":"10.1109/ICSWA.1981.9335143","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335143","url":null,"abstract":"During the past years, a great deal of work has gone into developing low noise mixers and detectors for millimeter and submillimeter waves [1 - 9]. This paper is not intended to provide a comprehensive review of millimeter detector and mixer technology but rather is intended to point out some research areas of current interest. In the following paragraphs, a few comments on the status of Schottky-barrier diodes are made, including recent data [10] on a beam leaded configuration utilized in hybrid integrated circuits. Efforts to increase the burnout capacity of Schottky-barrier diodes and to use of other types of diodes such as TUNNETT and BARITT diodes as high burnout mixers are described. This discussion is followed by consideration of detectors and mixers which operate at cryogenic temperatures - devices based on Josephson and quasi-particle tunneling (SIS) junctions, super-Schottky-barriers and hot electron effects. Some work underway on cryogenic refrigeration is described also.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116391673","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
Tunable Laser Sideband Spectrometer 可调谐激光边带光谱仪
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335175
E. Bonek, G. Magerl, W. Schupita, L. Weber, P. W. Froehling
{"title":"Tunable Laser Sideband Spectrometer","authors":"E. Bonek, G. Magerl, W. Schupita, L. Weber, P. W. Froehling","doi":"10.1109/ICSWA.1981.9335175","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335175","url":null,"abstract":"The idea of generating tunable mid-IR signals by mixing stabilized CO2 laser lines with tunable millimeter waves has been put to work in a high-resolution spectroscopic instrument with direct frequency reading. With this instrument, over 100 lines of the R, P, and Q-branches of the n3 fundamental of CH3F have been measured recently, with ±6.5 MHz absolute accuracy.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122505716","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 Photopolarimeter for Far Infrared Measurements 一种用于远红外测量的光偏振计
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335156
A. Blanco, F. D'Alessandro, S. Fonti, P. De Bernardis, S. Masi, F. Melchiorri, G. Dall'oglio
{"title":"A Photopolarimeter for Far Infrared Measurements","authors":"A. Blanco, F. D'Alessandro, S. Fonti, P. De Bernardis, S. Masi, F. Melchiorri, G. Dall'oglio","doi":"10.1109/ICSWA.1981.9335156","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335156","url":null,"abstract":"A photopolarimeter has been designed to measure the possible polarization of the Cosmic Background Radiation at millimeter wavelengths. The instrument and the working principle are described together with the testing procedure.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123818694","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
CH3OH High Resolution Fourier Transform in the Far Infrared 远红外线中CH3OH高分辨傅立叶变换
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335088
G. Moruzzi, F. Strumia, B. Carli, F. Mencaraglia, M. Carlotti, G. Di Lonardo, A. Trombetti
{"title":"CH3OH High Resolution Fourier Transform in the Far Infrared","authors":"G. Moruzzi, F. Strumia, B. Carli, F. Mencaraglia, M. Carlotti, G. Di Lonardo, A. Trombetti","doi":"10.1109/ICSWA.1981.9335088","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335088","url":null,"abstract":"The FIR absorption spectrum of CH<inf>3</inf>OH in the 10–85 cm<sup>−1</sup> region has been investigated with a resolution of about 3×10<sup>−3</sup> cm<sup>−1</sup>. Many Q bands have been resolved and new values for the internal rotation energies could be given.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126781154","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
High Resolution IR-FIR Spectroscopy of Optically Pumped CH3OH Around CO2 9R(10) and 10(34) Laser Lines 光泵浦CH3OH在CO2 9R(10)和10(34)激光线周围的高分辨率IR-FIR光谱
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335091
J. Henningsen, M. Inguscio, A. Moretti, F. Strumia
{"title":"High Resolution IR-FIR Spectroscopy of Optically Pumped CH3OH Around CO2 9R(10) and 10(34) Laser Lines","authors":"J. Henningsen, M. Inguscio, A. Moretti, F. Strumia","doi":"10.1109/ICSWA.1981.9335091","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335091","url":null,"abstract":"Four new FIR laser lines at 62.88, 48.77, 224.53, and 190.65μm are reported from CH3OH, optically pumped by the 10R34 and 9R10 lines of a waveguide CO2 laser. Measurements performed by several techniques confirm that the pump offsets are ouiside the tuning range of conventional CO2 lasers. Two of the lines are assigned as high J transitions within the torsional ground state of the CO stretch.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385403","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
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