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Journal articles on the topic 'Submillimeter radiation'

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1

Lindsey, Charles. "The Sun in Submillimeter Radiation." Symposium - International Astronomical Union 154 (1994): 85–92. http://dx.doi.org/10.1017/s0074180900124301.

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Continuum observations in the far IR have given us a broad spectrum of new and powerful diagnostic utilities for the solar atmosphere. The infrared continuum is formed in LTE with thermal free electrons by free-free interactions. This gives us a flexible and accurate atmospheric thermometer that has made infrared measurements fundamental to modeling of the quiet solar medium for more than two decades. The submillimeter and millimeter continua are particularly useful with respect to thermal diagnostics of the low chromospheric temperature minimum, where non-radiative heating of the solar medium
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2

Jin, Hai Wei, Lan Zhang, Jie Liu, and Xu Qian. "The Progress of Millimeter / Submillimeter Wave TWT Research." Applied Mechanics and Materials 705 (December 2014): 219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.705.219.

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Millimeter / Submillimeter wave traveling wave tubes have the merits of high output power, frequency bandwidth, compact, light weight, etc. Millimeter / Submillimeter wave traveling wave tube is an ideal millimeter / submillimeter radiation source, can be used in fields of radar, electronic warfare, communication, etc. The paper introduced and summarized the research status of foreign Millimeter / submillimeter TWT wave tube, analyzed and discussed its trend.
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3

ZHOU, J. Y., Q. X. LI, H. Z. WANG, Z. G. CAI, X. G. HUANG, and Z. X. YU. "APPLICATIONS OF SUBMILLIMETER WAVEGUIDE TO LASER-MODE SELECTION AND NONLINEAR OPTICS." Journal of Nonlinear Optical Physics & Materials 01, no. 01 (1992): 151–66. http://dx.doi.org/10.1142/s0218199192000091.

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Use of submillimeter waveguide for laser transverse mode control, four-wave parametric frequency conversion, ultrafast broadband radiation generation and optical pulse shortening are presented. This paper begins with a general introduction to the applications of submillimeter waveguide to laser physics and nonlinear optics. Transverse mode selection by using an intracavity capillary is then described. Nonlinear optical frequency conversion in gas-filled hollow dielectric and hollow metallic waveguide structures is discussed. Applications of submillimeter liquid-core fiber to stimulated scatter
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4

Esman, A. K., V. K. Kuleshov, G. L. Zykov, and V. B. Zalesskiĭ. "Planar system for recording submillimeter radiation." Journal of Optical Technology 79, no. 6 (2012): 363. http://dx.doi.org/10.1364/jot.79.000363.

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5

Cox, P., and P. G. Mezger. "The galactic infrared/submillimeter dust radiation." Astronomy and Astrophysics Review 1, no. 1 (1989): 49–83. http://dx.doi.org/10.1007/bf00872484.

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6

De Zotti, G., L. Danese, L. Toffolatti, and A. Franceschini. "The Microwave Background Radiation." Symposium - International Astronomical Union 139 (1990): 333–43. http://dx.doi.org/10.1017/s0074180900240898.

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We review the data on the spectrum and isotropy of the microwave background radiation and the astrophysical processes that may produce spectral distortions and anisotropies. As yet no fully satisfactory explanation has been found for the submillimeter excess observed by Matsumoto et al. (1988). The most precise data at λ > 1 mm disagree with nonrelativistic comptonization models which match the excess. Distortions produced by a very hot intergalactic medium yielding the X-ray background do not fit the submillimeter data. Very special requirements must be met for the interpretation in terms
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7

Matsumoto, Toshio. "Submillimeter Spectrum of the Cosmic Background Radiation." Highlights of Astronomy 8 (1989): 689–91. http://dx.doi.org/10.1017/s1539299600008662.

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Recent observations of the spectrum of the 3K cosmic background radiation (CBR) indicate that the CBR spectrum is consistent with a blackbody spectrum of T = 2.74 ±0.02K (Smoot et al. 1987). These measurements, however, were carried out in the Rayleigh-Jeans part of the spectrum, while theories predict spectral distortion in the Wien part. Therefore, we tried to observe the submillimeter spectrum of the CBR with a liq.He cooled radiometer onboard a sounding rocket. The experiment was a collaboration between Nagoya University and University of California, Berkeley.
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8

Vlasov, G. K., E. I. Chizhikova, and D. N. Vylegzhanin. "Excitonic detectors of infrared and submillimeter radiation." International Journal of Infrared and Millimeter Waves 15, no. 1 (1994): 121–35. http://dx.doi.org/10.1007/bf02265879.

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9

S. Ol’shevskaya, Yuliya, Aleksandr S. Kozlov, Aleksandr K. Petrov, Tatyana A. Zapara, and Aleksandr S. Ratushnyak. "Cell Membrane Permeability Under the Influence of Terahertz (Submillimeter) Laser Radiation." Siberian Journal of Physics 5, no. 4 (2010): 177–81. http://dx.doi.org/10.54362/1818-7919-2010-5-4-177-181.

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Within the framework of the task of revealing the mechanisms of the action of terahertz (submillimeter) radiation on biological objects, the influence of terahertz (submillimeter) radiation on the processes of transmembrane transport in cell systems was experimentally analyzed. Complex research using dyes which do not penetrate through intact membranes (Trypan Blue) and reveal viable cells (BCECF-AM) together with electrophysiological analysis has shown that radiation with a 130-micron wavelength creates conditions for penetration of compounds that usually do not go through the membrane of liv
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10

Phillips, T. G. "A Submillimeter Mission for the 1990s: SMMM." International Astronomical Union Colloquium 123 (1990): 231–49. http://dx.doi.org/10.1017/s0252921100077071.

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Submillimeter wavelengths hold the key to some of the most important aspects of astronomy. These range from star-forming molecular clouds and proto-planetary disks in our galaxy to infrared emitting galaxies at cosmological distances. Indeed, the essential problems of star-formation and galaxy-formation will be directly probed by the submillimeter spectral lines and continuum radiation emitted by these objects. Other fascinating topics falling into the submillimeter band include the Wien component of the cosmic background radiation, containing information on the nature of the early universe, a
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11

Petrosian, Vahé. "Submillimeter and Far Infrared Emission from Solar Flares." Symposium - International Astronomical Union 154 (1994): 103–12. http://dx.doi.org/10.1017/s0074180900124325.

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The mechanisms for emission in the submillimeter and far-infrared (1011 and 1013 Hz) regions by solar flares and expected fluxes at these frequencies are described and evaluated. These inferences are based on observations of flare emission at other frequencies and on models for these emissions. In the impulsive phase, non-thermal synchrotron emission by electrons responsible for > 10 MeV gamma-ray emission can give rise to significant radiation in the 1011 to 1013 Hz region from large flares. Free-free or thermal gyrosynchrotron from the hot plasma responsible for the gradual soft X-ray emi
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12

Tachibana, Tomoko, Tomoko Gowa Oyama, Yukie Yoshii, et al. "An In Vivo Dual-Observation Method to Monitor Tumor Mass and Tumor-Surface Blood Vessels for Developing Anti-Angiogenesis Agents against Submillimeter Tumors." International Journal of Molecular Sciences 24, no. 24 (2023): 17234. http://dx.doi.org/10.3390/ijms242417234.

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Managing metastasis at the early stage and detecting and treating submillimeter tumors at early metastasis are crucial for improving cancer prognosis. Angiogenesis is a critical target for developing drugs to detect and inhibit submillimeter tumor growth; however, drug development remains challenging because there are no suitable models for observing the submillimeter tumor mass and the surrounding blood vessels in vivo. We have established a xenograft subcutaneous submillimeter tumor mouse model with HT-29-RFP by transplanting a single spheroid grown on radiation-crosslinked gelatin hydrogel
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13

Takahashi, T., Y. Shibata, F. Arai, et al. "Coherent transition radiation at submillimeter and millimeter wavelengths." Physical Review E 48, no. 6 (1993): 4674–77. http://dx.doi.org/10.1103/physreve.48.4674.

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14

Shibata, Yukio, Kimihiro Ishi, Toshiaki Ohsaka, et al. "Coherent synchrotron radiation at submillimeter and millimeter wavelengths." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 301, no. 1 (1991): 161–66. http://dx.doi.org/10.1016/0168-9002(91)90750-k.

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15

Matsumoto, T., S. Hayakawa, H. Matsuo, et al. "The submillimeter spectrum of the cosmic background radiation." Astrophysical Journal 329 (June 1988): 567. http://dx.doi.org/10.1086/166403.

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16

Lindsey, C., G. Kopp, T. A. Clark, and G. Watt. "The Sun in Submillimeter and Near-Millimeter Radiation." Astrophysical Journal 453 (November 1995): 511. http://dx.doi.org/10.1086/176412.

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17

Puget, J. L. "Summary: The Galactic Background Radiation." Symposium - International Astronomical Union 139 (1990): 485–89. http://dx.doi.org/10.1017/s0074180900241338.

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The most striking aspect of this conference with respect to galactic studies has been the confrontation between wavelengths. The study of the background radiation requires absolute measurements of low brightness over very extended regions. Such measurements are known to be extremely difficult. We now can confront data on the galactic background at all frequencies. The data from far ultraviolet to submillimeter give particularly useful constraints on both the direct interpretation of the data and on their astrophysical interpretation.
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18

Mather, J. C. "Observation and Interpretation of the Cosmic Microwave Background Spectrum." Highlights of Astronomy 9 (1992): 275–79. http://dx.doi.org/10.1017/s1539299600009059.

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AbstractRecent precise observations of the microwave and submillimeter cosmic background radiation are summarized, including rocket experiments, the FIRAS (Far InfraRed Absolute Spectrophotometer) on the COBE, CN results, and microwave measurements. Theoretical implications are summarized.
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19

Gershenzon, E. M., G. N. Gol’tsman, A. I. Elant’ev, B. S. Karasik, and S. E. Potoskuev. "Intense electromagnetic radiation heating of electrons of a superconductor in the resistive state." Soviet Journal of Low Temperature Physics 14, no. 7 (1988): 414–20. https://doi.org/10.1063/10.0031981.

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The effect of intense millimeter and submillimeter radiation on thin and narrow niobium films in the resistive state is studied. It is shown that the excess resistance emerging due to radiation, as well as the dependence of relaxation time of the resistance on radiation intensity and transport current can be attributed to heating of the electrons. The experimental results are found to be in quantitative agreement with the model of uniform heating of electrons.
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20

Bojarski, N. "Comments on "Inverse black body radiation at submillimeter wavelengths"." IEEE Transactions on Antennas and Propagation 33, no. 2 (1985): 226. http://dx.doi.org/10.1109/tap.1985.1143556.

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21

Budhani, R. C., L. Lesyna, D. DiMarzio, H. Wiesmann, and G. P. Williams. "Electrodynamics ofYBa2Cu3O7films deduced from submillimeter synchrotron-radiation transmittance measurements." Physical Review B 44, no. 13 (1991): 7087–90. http://dx.doi.org/10.1103/physrevb.44.7087.

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22

Ginzburg, N. S., I. V. Zotova, V. Yu Zaslavskii, A. S. Sergeev, and I. V. Zheleznov. "Submillimeter planar gyrotrons with transverse diffraction output of radiation." Technical Physics Letters 37, no. 1 (2011): 79–82. http://dx.doi.org/10.1134/s1063785011010196.

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23

Alexeff, I., and M. Rader. "Photo of a synthetic atom [submillimeter microwave radiation production]." IEEE Transactions on Plasma Science 24, no. 1 (1996): 26. http://dx.doi.org/10.1109/27.491673.

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24

Chouvaev, D., and L. Kuzmin. "An SNS antenna-coupled direct detector of submillimeter radiation." Physica C: Superconductivity 352, no. 1-4 (2001): 128–30. http://dx.doi.org/10.1016/s0921-4534(00)01707-x.

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25

Shimizu, Takashi, Yasuhiko Abe, Yoshizumi Yasuoka, and Kenji Gamo. "Thin-Film Slot Antennas for 2.5 THz Submillimeter Radiation." Japanese Journal of Applied Physics 35, Part 2, No. 2B (1996): L266—L268. http://dx.doi.org/10.1143/jjap.35.l266.

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26

Mondal, Ayon, Arijit Sar, Maitreya Kundu, Ritaban Chatterjee, and Pratik Majumdar. "Spectral Energy Distribution Modeling of BL Lacertae during a Large Submillimeter Outburst and Low X-Ray Polarization State." Astrophysical Journal 978, no. 1 (2024): 43. https://doi.org/10.3847/1538-4357/ad9603.

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Abstract In 2023 October–November, the blazar BL Lacertae underwent a very large-amplitude submillimeter outburst. The usual single-zone leptonic model with the lower-energy peak of the spectral energy distribution (SED) fit by the synchrotron emission from one distribution of relativistic electrons in the jet and inverse-Compton (IC) scattering of lower-energy photons from the synchrotron radiation in the jet itself (synchrotron self-Compton or SSC) or those from the broad-line region and torus by the same distribution of electrons cannot satisfactorily fit the broadband SED with simultaneous
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27

Dayton, J. A., V. O. Heinen, N. Stankiewicz, and T. M. Wallett. "Submillimeter backward wave oscillators." International Journal of Infrared and Millimeter Waves 8, no. 10 (1987): 1257–68. http://dx.doi.org/10.1007/bf01011077.

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28

Guenther, Bob D., and Paul W. Kruse. "Submillimeter wave detector workshop." International Journal of Infrared and Millimeter Waves 7, no. 8 (1986): 1091–109. http://dx.doi.org/10.1007/bf01011096.

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29

Cassedy, E. S. "The free-electron-laser synchronous harmonic generator—A high power source of submillimeter waves." Laser and Particle Beams 5, no. 4 (1987): 659–74. http://dx.doi.org/10.1017/s0263034600003177.

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A harmonic generator of submillimeter wavelength radiation, operating on a relativistic electron beam, is proposed. The device is shown to operate on principles of parametric interactions, under the particular conditions of an electric-quadrupole pump field which is propagating synchronously with the electron beam. Using a fluid model, it is shown that a cascade of parametric sum and difference frequencies in the transverse beam modes should occur, with each harmonic component growing convectively along the beam. The physical effect, termed the “sonic condition”, has been observed previously o
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30

Dye, S., S. A. Eales, M. L. N. Ashby, et al. "An Investigation of the Submillimeter Background Radiation Using SCUBA andSpitzer." Astrophysical Journal 644, no. 2 (2006): 769–77. http://dx.doi.org/10.1086/503863.

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31

Carlsten, Bruce E., Kip A. Bishofberger, and Rickey J. Faehl. "Compact two-stream generator of millimeter- and submillimeter-wave radiation." Physics of Plasmas 15, no. 7 (2008): 073101. http://dx.doi.org/10.1063/1.2938385.

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32

Shibata, Y., K. Ishi, T. Takahashi, et al. "Observation of coherent transition radiation at millimeter and submillimeter wavelengths." Physical Review A 45, no. 12 (1992): R8340—R8343. http://dx.doi.org/10.1103/physreva.45.r8340.

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33

Chen, Ke, Jiasheng Wu, and Yingying Chen. "Joint Retrieval of Multiple Species of Ice Hydrometeor Parameters from Millimeter and Submillimeter Wave Brightness Temperature Based on Convolutional Neural Networks." Remote Sensing 16, no. 6 (2024): 1096. http://dx.doi.org/10.3390/rs16061096.

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Submillimeter wave radiometers are promising remote sensing tools for sounding ice cloud parameters. The Ice Cloud Imager (ICI) aboard the second generation of the EUMETSAT Polar System (EPS−SG) is the first operational submillimeter wave radiometer used for ice cloud remote sensing. Ice clouds simultaneously contain three species of ice hydrometeors—ice, snow, and graupel—the physical distributions and submillimeter wave radiation characteristics of which differ. Therefore, jointly retrieving the mass parameters of the three ice hydrometeors from submillimeter brightness temperatures is very
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34

Kocharian, K. N., V. E. Harutunian, R. M. Martirossian, et al. "Submillimeter transmission spectra of Sr2Ca2Cu4Oy." International Journal of Infrared and Millimeter Waves 12, no. 7 (1991): 749–55. http://dx.doi.org/10.1007/bf01008904.

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35

Avakian, A. A., K. N. Kocharian, and R. M. Martirossian. "Acoustomagnetic modulation in submillimeter band." International Journal of Infrared and Millimeter Waves 11, no. 6 (1990): 759–64. http://dx.doi.org/10.1007/bf01010044.

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36

Volkov, A. A. "Submillimeter BWO spectroscopy of solids." International Journal of Infrared and Millimeter Waves 8, no. 1 (1987): 55–61. http://dx.doi.org/10.1007/bf01010646.

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37

Frerking, Margaret A. "Submillimeter (Terahertz) Receiver Technology Conference." International Journal of Infrared and Millimeter Waves 8, no. 10 (1987): 1211–14. http://dx.doi.org/10.1007/bf01011071.

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38

Kimura, Shigeo S., Shinsuke Takasao, and Kengo Tomida. "Modeling Hadronic Gamma-Ray Emissions from Solar Flares and Prospects for Detecting Nonthermal Signatures from Protostars." Astrophysical Journal 944, no. 2 (2023): 192. http://dx.doi.org/10.3847/1538-4357/acb649.

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Abstract We investigate gamma-ray emission in the impulsive phase of solar flares and the detectability of nonthermal signatures from protostellar flares. Energetic solar flares emit high-energy gamma rays of GeV energies, but their production mechanism and emission site are still unknown. Young stellar objects, including protostars, also exhibit luminous X-ray flares, but the triggering mechanism of the flaring activity is still unclear owing to the strong obscuration. Nonthermal signatures in millimeter/submillimeter and gamma-ray bands are useful to probe protostellar flares owing to their
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39

Khersonskii, V. K., and N. V. Voshchinnikov. "Infrared Dust Emission in Galaxies and Spectral Distortion of Microwave Background." Symposium - International Astronomical Union 139 (1990): 394–95. http://dx.doi.org/10.1017/s0074180900241065.

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Recent observations (Matsumoto et al., 1988) indicate that at submillimeter wavelengths the spectrum of the cosmic background radiation (CBR) deviates from that of Planckian blackbody with a temperature T0R = 2.76 K. The relative excess of the flux ζ(v) = [F(v) – F0(v)] / F0(v) (where F(v) and F0(v) are the registered flux and the flux of the blackbody radiation at the frequency of the observations) are 0.6 at a frequency v1 = 380 GHz (λ = 709 μm) and 3.4 at a frequency v2 = 624 GHz (λ = 481 μm).
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40

Partridge, R. B. "Extragalactic Backgrounds: Common Features and New Work on Intracluster Light." Symposium - International Astronomical Union 139 (1990): 283–93. http://dx.doi.org/10.1017/s0074180900240849.

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I examine some common features of several extragalactic backgrounds, beginning with the best studied of all backgrounds, the 3 K microwave radiation, then continuing on to the newly discovered submillimeter flux and the near infrared (IR) background. Both the total surface brightness and fluctuations (or anisotropies) in the brightness of these backgrounds are considered. Some implications for cosmology and for astrophysics are mentioned.
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41

Ridler, Nick M., Roland G. Clarke, Chong Li, and Martin J. Salter. "Strategies for Traceable Submillimeter-Wave Vector Network Analyzer." IEEE Transactions on Terahertz Science and Technology 9, no. 4 (2019): 392–98. http://dx.doi.org/10.1109/tthz.2019.2911870.

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42

Doi, A., M. Teranaka, F. Gohda, et al. "Protein denaturation by millimeter and submillimeter wave radiation using a gyotron." Seibutsu Butsuri 39, supplement (1999): S171. http://dx.doi.org/10.2142/biophys.39.s171_2.

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43

von Ortenberg, Michael. "Monochromatic submillimeter radiation — a fundamental tool in magneto spectroscopy of solids." Infrared Physics & Technology 36, no. 1 (1995): 321–31. http://dx.doi.org/10.1016/1350-4495(94)00076-w.

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44

Rahman, Faiz, and Trevor Thornton. "Superconducting quantum wells for the detection of submillimeter wave electromagnetic radiation." Applied Physics Letters 77, no. 3 (2000): 432–34. http://dx.doi.org/10.1063/1.127000.

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45

Belenov, É. M., M. V. Danileĭko, V. E. Derkach, V. I. Romanenko, and A. V. Uskov. "Superconducting Nb3Sn point contact in the submillimeter range of electromagnetic radiation." Soviet Journal of Quantum Electronics 18, no. 5 (1988): 675–76. http://dx.doi.org/10.1070/qe1988v018n05abeh012260.

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46

Ferrante, G., M. Zarcone, and S. A. Uryupin. "Amplification of nonlinear currents generation at harmonics frequencies of submillimeter radiation." Laser Physics Letters 3, no. 9 (2006): 437–40. http://dx.doi.org/10.1002/lapl.200610034.

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47

Hayakawa, Satio, Toshio Matsumoto, Hiroshi Matsuo, et al. "Cosmological Implication of a New Measurement of the Submillimeter Background Radiation." Publications of the Astronomical Society of Japan 39, no. 6 (1987): 941–48. https://doi.org/10.1093/pasj/39.6.941.

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Abstract A new submillimeter measurement of the cosmic background radiation (CBR) by T. Matsumoto et al. (1988; Astrophys. J., 329, No. 2, in press) shows excess brightness between 1000 and 300 μm. The excess is large, corresponding to ~ 10 % of the undistorted blackbody radiation. A good fit to the new measurement is obtained from the assumption of nonrelativistic Compton scattering with the Zeldovich–Sunyaev parameter y = 0.028 and the temperature T0 = 2.75 K for the undistorted Planck spectrum. The predicted temperature for the Rayleigh-Jeans limit TRJ = 2.60 K, however, is significantly be
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48

Tulnikov, E. D., V. S. Makhmutov, and M. V. Philippov. "Review of Studying Submillimeter Radiation from the Sun and Astrophysical Sources." Bulletin of the Russian Academy of Sciences: Physics 89, no. 6 (2025): 854–57. https://doi.org/10.1134/s1062873825711298.

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49

Lammers, U. H. W., R. A. Marr, and J. B. Morris. "A coherent mechanical submillimeter frequency shifter." International Journal of Infrared and Millimeter Waves 11, no. 3 (1990): 367–82. http://dx.doi.org/10.1007/bf01010435.

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50

Mueller, E. R. "Frequency-shifting submillimeter single-sideband receiver." International Journal of Infrared and Millimeter Waves 15, no. 4 (1994): 665–70. http://dx.doi.org/10.1007/bf02096482.

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