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

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High Contrast Multipass Fabry-Perot Spectrometer 高对比度多通法布里-珀罗光谱仪
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335090
G. Holah, O. Simpson
{"title":"High Contrast Multipass Fabry-Perot Spectrometer","authors":"G. Holah, O. Simpson","doi":"10.1109/ICSWA.1981.9335090","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335090","url":null,"abstract":"Although diffraction grating and Fourier Transform spectrometers are widely used in the infrared & far infrared, both techniques posses inherent disadvantages. It is well-known that the radiation throughput of the grating spectrometer is severely reduced as the resolution is increased, it is this lack of radiation energy and the accompanying need for long measurement times which has led to the rapid expansion of the Fourier technique as the basic FIR instrument. However the grating does have a number of advantages, namely it is real-time, resolution over a small spectral interval can be improved by closing the splits without a too prohibitively long scan time, it has high contrast, i.e., its spectral purity when used with good blocking filters is very good. This means that transmissions less than 1% can be measured with a high degree of confidence and small, < 0.5%, changes can easily be seen.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"14 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":"116348472","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
Wide Band-Pass Filters using Optical Resonance in Metallic Meshes 利用金属网光共振的宽带通滤波器
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335092
J. Lamarre, M. Charra
{"title":"Wide Band-Pass Filters using Optical Resonance in Metallic Meshes","authors":"J. Lamarre, M. Charra","doi":"10.1109/ICSWA.1981.9335092","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335092","url":null,"abstract":"Optical resonance in metallic meshes and its use for spectral filtering of far infrared radiation are investigated.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"69 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":"124044453","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
Injection-Locked Tunable Tea CO2 Laser for SMM Laser Pumping 用于SMM激光泵浦的注入锁定可调谐Tea CO2激光器
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335096
T. Okada, K. Kato, R. Noudomi, K. Muraoka, M. Akazaki
{"title":"Injection-Locked Tunable Tea CO2 Laser for SMM Laser Pumping","authors":"T. Okada, K. Kato, R. Noudomi, K. Muraoka, M. Akazaki","doi":"10.1109/ICSWA.1981.9335096","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335096","url":null,"abstract":"For the ion temperature measurement of Tokamak plasmas by a collective thermal scattering, injection-locked tunable single-mode TEA CO2 laser is being developed as a pumping source for a single-mode submillimeter (SMM) laser. Numerical calculations show that the CO2 laser is tunable over 1 GHz and that a pulse shaping is possible. Preliminary experimental tests indicate the feasibility of the scheme.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"91 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":"121510331","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
TFTR 1mm Density Interferometer 1mm密度干涉仪
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335097
W. Ernst, M. Goldman, F. Senk, H. Anderson, M. McCarthy, V. Arunasalam, P. Efthimion
{"title":"TFTR 1mm Density Interferometer","authors":"W. Ernst, M. Goldman, F. Senk, H. Anderson, M. McCarthy, V. Arunasalam, P. Efthimion","doi":"10.1109/ICSWA.1981.9335097","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335097","url":null,"abstract":"A primary control diagnostic instrument on the Princeton Tokamak Fusion Test Reactor (TFTR) will be a 1mm double-pass interferometer. The interferometer will provide: (a) line average electron density measurements for densities up to 2 × 1014 cm−3, (b) a permissive signal for control of neutral beam firing, and (c) an input signal for the gas feedback controlling system that regulates the electron density level. A 1mm wavelength was selected because of the following considerations: 1. A reliable 1 watt carcinotron source is available. 2. The cut-off density for the probing frequency, 1015 cm−3, is a factor of 3 above the highest average density to be measured. 3. At 1mm wavelength refraction problems are not severe along the available horizontal mid-plane transmission path (i.e., along the density gradient). 4. Low-loss in over-sized waveguide allows the interferometer to be located remotely from the tokamak and thus minimize environmental problems. 5. The interferometer is relatively insensitive to vibration.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"26 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":"128960285","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
Normal Incidence Millimeter Reflection and Transmission Measurements of Textile Materials 纺织材料的正入射毫米反射和透射测量
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335182
R. Moore, J. W. Bond
{"title":"Normal Incidence Millimeter Reflection and Transmission Measurements of Textile Materials","authors":"R. Moore, J. W. Bond","doi":"10.1109/ICSWA.1981.9335182","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335182","url":null,"abstract":"The magnitudes of the power reflection and transmission coefficients of polyester textile fabrics containing various densities of 8 and 12μm diameter 316 steel fibers were measured at the millimeter frequencies 36.0, 59.0, and 94.0 GHz at normal incidence. Additional data is shown for reflection and transmission extending into the microwave region.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"36 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":"131187801","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
Observations of Electron Cyclotron Emission on the PLT tokamak PLT托卡马克上电子回旋辐射的观测
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335126
F. Stauffer, D. Boyd, G. Tait
{"title":"Observations of Electron Cyclotron Emission on the PLT tokamak","authors":"F. Stauffer, D. Boyd, G. Tait","doi":"10.1109/ICSWA.1981.9335126","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335126","url":null,"abstract":"At the Wurzburg meeting, we reported the installation of an improved radiation collection optical system for the fast-scanning Michelson interferometer that is being used to observe the electron cyclotron emission (ECE) from the PLT tokamak (1). The purpose of this optical system was (a) to provide control over the field of view in the PLT plasma, and (b) to allow the coupling of radiation from a blackbody source to the Michelson to be as much like the plasma-Michelson coupling as possible, in an effort to make absolutely calibrated measurements of the ECE. During the Würzburg meeting, a carbon mirror was installed for us on the far wall of the PLT vacuum vessel so that it served as a viewing target for the optical system. This paper reports on (a) observations of the ECE entering the optical system in two orthogonal directions of polarization that were made following the installation of the viewing target, and (b) the degree of success that has been achieved in an effort to make absolutely calibrated measurements of the ECE spectrum.","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":"131388854","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
Quasi-Optical Millimeter-Wave Power Combiner 准光毫米波功率合成器
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335147
L. Wandinger, V. Nalbandian
{"title":"Quasi-Optical Millimeter-Wave Power Combiner","authors":"L. Wandinger, V. Nalbandian","doi":"10.1109/ICSWA.1981.9335147","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335147","url":null,"abstract":"A millimeter-wave combiner using quasioptical open resonators to effectively combine the power output of two InP Gunn oscillators at 60 GHz is described. A combining efficiency of 52% has been achieved in initial measurements.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"31 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":"131417777","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: 3
FIR-Detection in the Presence of High Hydrostatic Pressure 高静水压力下的fir检测
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335225
U. Steigenberger, M. Eremets, S. G. Lapin, M. Shirokov, E. A. Vinogradov
{"title":"FIR-Detection in the Presence of High Hydrostatic Pressure","authors":"U. Steigenberger, M. Eremets, S. G. Lapin, M. Shirokov, E. A. Vinogradov","doi":"10.1109/ICSWA.1981.9335225","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335225","url":null,"abstract":"Hensel et a1. [1] demonstrated that the investigation of the pressure dependence of optical transitions in intraband magneto-spectroscopy is an extremely powerful tool in the analysis of the electronic structure of semiconductors. These authors applied uniaxial stress. Often the application of the complementary hydrostatics tress promises a larger range of information.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"50 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":"132452214","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 Mm-Wave Raman Free Electron Laser Experiment 毫米波拉曼自由电子激光实验
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335208
S. Gold, R. Jackson, R. Parker, V. Granatstein, H. Freund, P. Efthimion, M. Herndon, A. Kinkead
{"title":"A Mm-Wave Raman Free Electron Laser Experiment","authors":"S. Gold, R. Jackson, R. Parker, V. Granatstein, H. Freund, P. Efthimion, M. Herndon, A. Kinkead","doi":"10.1109/ICSWA.1981.9335208","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335208","url":null,"abstract":"A new experiment has been constructed to study the Raman free-electron laser interaction at millimeter wavelengths. Preliminary measurements, conducted in a superradiant amplifier configuration, indicate the production of tens of MW's of power at approximately 3.5 mm (85 GHz), a wavelength consistent with a coupling of the slow-space-charge wave with the fundamental waveguide mode in the presence of the wiggler field. The radiation conversion efficiency is several percent, an order of magnitude improvement over previous experiments. The parametric dependence of power thresholds and wavelength on pump and guide magnetic fields are found to correlate with a small signal gain analysis of single particle trajectories.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"32 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":"132971254","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
Planar Antenna-Coupled SIS Devices for Detection and Mixing 用于检测和混频的平面天线耦合SIS装置
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335103
K. Irwin, S. Schwarz, T. Van Duzer
{"title":"Planar Antenna-Coupled SIS Devices for Detection and Mixing","authors":"K. Irwin, S. Schwarz, T. Van Duzer","doi":"10.1109/ICSWA.1981.9335103","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335103","url":null,"abstract":"In order to avoid the difficulties associated with waveguide and cat-whisker contacts at frequencies above 100GHz, a planar integrated circuit combining lead-alloy SIS junctions and a receiving antenna has been developed. A novel tuning device for the planar circuit will also be described.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"178 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":"122418538","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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