Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.最新文献
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422224
R. Hoogeveen, P. Yagoubov, Q. Kleipool, V. Koshelets, S. Shitov, B. Ellison, M. Birk
TELIS (TErahertz and sub millimeter LImb Sounder) is a three-channel balloon-borne cryogenic heterodyne receiver on which a number of novel features are tested. It flies together with the MIPAS-B2 instrument and the combination can yield the most complete map of atmospheric species ever measured from one platform. The three channels are selected at 500 GHz, tunable between 500 and 650 GHz and at 1.8 THz, and employ a SIS mixer, a Superconducting Integrated Receiver and a HEBM. The first flight is foreseen in 2006.
{"title":"TELIS: a novel three-channel cryogenic heterodyne receiver for stratospheric research","authors":"R. Hoogeveen, P. Yagoubov, Q. Kleipool, V. Koshelets, S. Shitov, B. Ellison, M. Birk","doi":"10.1109/ICIMW.2004.1422224","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422224","url":null,"abstract":"TELIS (TErahertz and sub millimeter LImb Sounder) is a three-channel balloon-borne cryogenic heterodyne receiver on which a number of novel features are tested. It flies together with the MIPAS-B2 instrument and the combination can yield the most complete map of atmospheric species ever measured from one platform. The three channels are selected at 500 GHz, tunable between 500 and 650 GHz and at 1.8 THz, and employ a SIS mixer, a Superconducting Integrated Receiver and a HEBM. The first flight is foreseen in 2006.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85516382","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422324
G. Wollny, A. Hecker, A. Bergner, E. Brundermann, R. Schiwon, M. Havenith
We have developed a new method to image microscopic structures in living cells using as bright IR radiation source: our high power CW optoparametric oscillator (OPO) with up to 2.7 W output power and a near infrared laser. We present the first results for the chemical microscopy of hepatocytes (liver cells) using a frequency of 2920 cm/sup -1/ coinciding with the absorption band of lipids and at 1.5 /spl mu/m corresponding to the overtones of water. Infrared microscopy allows studying processes of living cells in cases where fluorescence markers are cell damaging, alter the natural function of a protein in a cell or where labeling is impossible. In the infrared spectral range, accessible to our laser systems, substances can be identified according to their specific absorption in the so-called fingerprint region. Moreover, the absorption is directly proportional to the number of molecules, which makes it the appropriate method for quantitative measurements. Our method opens the possibility to investigate rapid changes of chemical behavior and the dynamics of small bio-molecules in living cells. In addition, we demonstrate by using near-field microscopy a spatial resolution of less than 30 nm (/spl Lt//spl lambda//100) at /spl lambda/=3222 nm (3104 cm/sup -1/).
{"title":"Infrared laser microscopy of living cells using a CW optoparametric oscillator as radiation source","authors":"G. Wollny, A. Hecker, A. Bergner, E. Brundermann, R. Schiwon, M. Havenith","doi":"10.1109/ICIMW.2004.1422324","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422324","url":null,"abstract":"We have developed a new method to image microscopic structures in living cells using as bright IR radiation source: our high power CW optoparametric oscillator (OPO) with up to 2.7 W output power and a near infrared laser. We present the first results for the chemical microscopy of hepatocytes (liver cells) using a frequency of 2920 cm/sup -1/ coinciding with the absorption band of lipids and at 1.5 /spl mu/m corresponding to the overtones of water. Infrared microscopy allows studying processes of living cells in cases where fluorescence markers are cell damaging, alter the natural function of a protein in a cell or where labeling is impossible. In the infrared spectral range, accessible to our laser systems, substances can be identified according to their specific absorption in the so-called fingerprint region. Moreover, the absorption is directly proportional to the number of molecules, which makes it the appropriate method for quantitative measurements. Our method opens the possibility to investigate rapid changes of chemical behavior and the dynamics of small bio-molecules in living cells. In addition, we demonstrate by using near-field microscopy a spatial resolution of less than 30 nm (/spl Lt//spl lambda//100) at /spl lambda/=3222 nm (3104 cm/sup -1/).","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81626685","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422057
Y. Liang, C. Chang, C. Domier, N. Luhmann, E. Mazzucato, T. Munsat, H. Park
A millimeter-wave phased antenna array (PAA) is under development for use in radar reflectometric imaging in magnetic fusion plasmas. Functioning as a variable focal length lens, the output of the piezoelectric transducer controlled PAA can be imaged onto the target plasma with a voltage-controlled image depth. Measurement and simulation data are presented.
{"title":"Millimeter-wave beam shaping using phased antenna arrays for imaging plasma reflectometry","authors":"Y. Liang, C. Chang, C. Domier, N. Luhmann, E. Mazzucato, T. Munsat, H. Park","doi":"10.1109/ICIMW.2004.1422057","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422057","url":null,"abstract":"A millimeter-wave phased antenna array (PAA) is under development for use in radar reflectometric imaging in magnetic fusion plasmas. Functioning as a variable focal length lens, the output of the piezoelectric transducer controlled PAA can be imaged onto the target plasma with a voltage-controlled image depth. Measurement and simulation data are presented.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81933834","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422042
Zhonghui Chen, Eui-Tae Kim, Zhengmao Ye, J. Campbell, A. Madhukar
This paper reviews recent progresses in developing self-assembled InAs/GaAs quantum dots based infrared photodetectors, especially, with n-i(QDs)-n configuration. These significant progresses indicate a realistic hope that QDIPs can be exploited for mid-infrared imaging application.
{"title":"Novel infrared detectors based on semiconductor quantum dots","authors":"Zhonghui Chen, Eui-Tae Kim, Zhengmao Ye, J. Campbell, A. Madhukar","doi":"10.1109/ICIMW.2004.1422042","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422042","url":null,"abstract":"This paper reviews recent progresses in developing self-assembled InAs/GaAs quantum dots based infrared photodetectors, especially, with n-i(QDs)-n configuration. These significant progresses indicate a realistic hope that QDIPs can be exploited for mid-infrared imaging application.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79638846","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1421991
F. Miyamaru, M. Tanaka, M. Hangyo
The effect of the surface structure for the transmission property of the metal hole arrays were investigated. We observed that the transmission peak frequency changes drastically with increasing the thickness of the dielectric layer which is attached to the metal surface. This result indicates the important role of the surface plasmon-polaritons for the transmission property of the metal hole array. In addition, we measured transmission spectra of the metal hole array, the diameter of which is much smaller than the wavelength of the THz wave. By optimizing the surface structure of the metal hole array for the excitation of the surface plasmon-polaritons, the strong enhancement of the transmission of the terahertz wave was obtained.
{"title":"Strong effect of surface structures for the transmission property of metal hole arrays in sub-terahertz region","authors":"F. Miyamaru, M. Tanaka, M. Hangyo","doi":"10.1109/ICIMW.2004.1421991","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1421991","url":null,"abstract":"The effect of the surface structure for the transmission property of the metal hole arrays were investigated. We observed that the transmission peak frequency changes drastically with increasing the thickness of the dielectric layer which is attached to the metal surface. This result indicates the important role of the surface plasmon-polaritons for the transmission property of the metal hole array. In addition, we measured transmission spectra of the metal hole array, the diameter of which is much smaller than the wavelength of the THz wave. By optimizing the surface structure of the metal hole array for the excitation of the surface plasmon-polaritons, the strong enhancement of the transmission of the terahertz wave was obtained.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79779544","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422151
M. Justen, M. Schultz, T. Tils, R. Teipen, S. Glenz, P. Putz, C. Honingh, K. Jacobs
We present the recently assembled flight models of the SIS mixer units (MU) for band 2 of the HIFI instrument for the Herschel satellite observatory. Design, device fabrication, most of the mixer hardware fabrication, space-qualification, and final assembly are all realized at KOSMA. Thanks to the modular design RF- and IF-performance of different parts of the MU are tested separately before final assembly. Latest test results show a noise temperature between 80 K in the band centre towards 220 K at the upper band edge at 2.8 K operating temperature. The mixer IF-ripple is below 2 dB over a 4-8 GHz bandwidth including the bias-T which provides a very high EMI and ESD protection. The mixer performance and design are discussed under the aspect of the careful trade off between performance, reliability, timely delivery, and resources.
{"title":"SIS flight mixers for band 2 of the HIFI instrument of the Herschel Space Observatory","authors":"M. Justen, M. Schultz, T. Tils, R. Teipen, S. Glenz, P. Putz, C. Honingh, K. Jacobs","doi":"10.1109/ICIMW.2004.1422151","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422151","url":null,"abstract":"We present the recently assembled flight models of the SIS mixer units (MU) for band 2 of the HIFI instrument for the Herschel satellite observatory. Design, device fabrication, most of the mixer hardware fabrication, space-qualification, and final assembly are all realized at KOSMA. Thanks to the modular design RF- and IF-performance of different parts of the MU are tested separately before final assembly. Latest test results show a noise temperature between 80 K in the band centre towards 220 K at the upper band edge at 2.8 K operating temperature. The mixer IF-ripple is below 2 dB over a 4-8 GHz bandwidth including the bias-T which provides a very high EMI and ESD protection. The mixer performance and design are discussed under the aspect of the careful trade off between performance, reliability, timely delivery, and resources.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85111999","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422140
I. Gorbatyuk, S. Ostapov, S. Dremlyuzhenko, I. Rarenko, R. Zaplitnyi, I. Fodchuk, N. Popenko, I. Ivanchenko, A. Zhigalov, S. Karelin
The monocrystals of new semiconductor solid solution Hg/sub 1-x-y-z/Cd/sub x/Mn/sub y/Zn/sub z/Te with the content of manganese and zinc up to 5% have been presented. X-ray and mechanical investigations of these crystals have been carried out and their basic electrophysical parameters such as the band-gap energy, the intrinsic carriers' concentration, the impurity concentration and activation energy, the mobility of charge carriers have been determined. It is shown that a new material has the perfect crystal structure and high stability of crystal lattice. The empirical formulas for calculations of band-gap energy and intrinsic carriers' concentration of monocrystals like that are suggested. The obtained data allow announcing this material as an alternative one for infrared detectors for 3-5 /spl mu/m and 8-14 /spl mu/m spectral ranges.
{"title":"The growth and physical properties of HgCdMnZnTe: new material for IR photodetectors","authors":"I. Gorbatyuk, S. Ostapov, S. Dremlyuzhenko, I. Rarenko, R. Zaplitnyi, I. Fodchuk, N. Popenko, I. Ivanchenko, A. Zhigalov, S. Karelin","doi":"10.1109/ICIMW.2004.1422140","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422140","url":null,"abstract":"The monocrystals of new semiconductor solid solution Hg/sub 1-x-y-z/Cd/sub x/Mn/sub y/Zn/sub z/Te with the content of manganese and zinc up to 5% have been presented. X-ray and mechanical investigations of these crystals have been carried out and their basic electrophysical parameters such as the band-gap energy, the intrinsic carriers' concentration, the impurity concentration and activation energy, the mobility of charge carriers have been determined. It is shown that a new material has the perfect crystal structure and high stability of crystal lattice. The empirical formulas for calculations of band-gap energy and intrinsic carriers' concentration of monocrystals like that are suggested. The obtained data allow announcing this material as an alternative one for infrared detectors for 3-5 /spl mu/m and 8-14 /spl mu/m spectral ranges.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83090481","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422287
J. Schirmer, G. Conway, W. Suttrop, S. Klenge, H. Zohm
The correlation Doppler reflectometer system consists of two 50-75 GHz reflectometers with a selectable O/X-mode polarization. Launching from the same tilted antenna allows the measurement of the radial electric field shear dE/sub r//dr and radial correlation lengths L/sub r/, important parameters characterizing plasma turbulence. The reflectometer hardware is described and example measurements presented.
{"title":"Plasma turbulence studies using correlation Doppler reflectometry on the ASDEX upgrade tokamak","authors":"J. Schirmer, G. Conway, W. Suttrop, S. Klenge, H. Zohm","doi":"10.1109/ICIMW.2004.1422287","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422287","url":null,"abstract":"The correlation Doppler reflectometer system consists of two 50-75 GHz reflectometers with a selectable O/X-mode polarization. Launching from the same tilted antenna allows the measurement of the radial electric field shear dE/sub r//dr and radial correlation lengths L/sub r/, important parameters characterizing plasma turbulence. The reflectometer hardware is described and example measurements presented.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83241843","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422182
S. Winnerl, T. Dekorsy, S. Sinning, M. Helm
We report on the terahertz emission from GaSb surfaces with thermally modified surface stoichiometry. The thermal treatment increases significantly the THz emission from the GaSb samples. For optimal conditions, namely an annealing temperature of 500/spl deg/C, the emission is comparable to the emission from n-doped GaAs. The THz emission is due to the acceleration of carriers in a surface field, caused by a surface decomposition. The surface decomposition was confirmed by the observation of Sb coherent phonons in pump-probe experiments.
{"title":"THz emission from GaSb samples with modified surface stoichiometry","authors":"S. Winnerl, T. Dekorsy, S. Sinning, M. Helm","doi":"10.1109/ICIMW.2004.1422182","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422182","url":null,"abstract":"We report on the terahertz emission from GaSb surfaces with thermally modified surface stoichiometry. The thermal treatment increases significantly the THz emission from the GaSb samples. For optimal conditions, namely an annealing temperature of 500/spl deg/C, the emission is comparable to the emission from n-doped GaAs. The THz emission is due to the acceleration of carriers in a surface field, caused by a surface decomposition. The surface decomposition was confirmed by the observation of Sb coherent phonons in pump-probe experiments.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82562863","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}
Pub Date : 2004-01-01DOI: 10.1109/ICIMW.2004.1422127
B. Garin
Theoretical lower dielectric loss limits due to some lattice and other loss mechanisms are considered in lowest loss materials such as diamond type crystals and SiC at the MM and THz ranges and various temperatures. There are principle opportunities of essential reduction of losses compared to the observed record breaking low loss.
{"title":"Lower loss limits at millimeter and terahertz ranges","authors":"B. Garin","doi":"10.1109/ICIMW.2004.1422127","DOIUrl":"https://doi.org/10.1109/ICIMW.2004.1422127","url":null,"abstract":"Theoretical lower dielectric loss limits due to some lattice and other loss mechanisms are considered in lowest loss materials such as diamond type crystals and SiC at the MM and THz ranges and various temperatures. There are principle opportunities of essential reduction of losses compared to the observed record breaking low loss.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90814985","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}
Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.
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