Transmission of Far-Infrared Radiation through Thin Films of Superconducting Amorphous Bismuth and Gallium and Beta-Phase Gallium

1969 ◽  
Vol 188 (2) ◽  
pp. 737-744 ◽  
Author(s):  
RICHARD E. HARRIS ◽  
D. M. GINSBERG
Keyword(s):  
Thin Films ◽  
Infrared Radiation ◽  
Far Infrared ◽  
Beta Phase ◽  
Far Infrared Radiation

Far-Infrared Radiation Modulators Using High-Tc Superconductors

1998 ◽  
Vol 120 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Z. M. Zhang
Keyword(s):  
Thin Films ◽  
Experimental Study ◽  
Normal State ◽  
Infrared Radiation ◽  
Optical Constants ◽  
Far Infrared ◽  
High Tc Superconductors ◽  
High Tc ◽  
Future Experimental Study ◽  
Far Infrared Radiation

The potential of using high-Tc superconductors as intensity modulators for far-infrared radiation is investigated in this work. Reflectance and transmittance for several design structures are computed using the published optical constants of the superconductor YBa2Cu3O7 and substrate materials. Notable differences in the reflectance and transmittance between the superconducting state and the normal state are illustrated. The best results are obtained based on the reflectance of thin films (10 nm–50 nm thick) on thin substrates (less than 100 μm thick) and for radiation incident on the substrate. This study demonstrates that high-Tc superconductive thin films can be used to build far-infrared radiation modulators. Future experimental study is recommended in order to materialize this promising thermo-optical device.

A Study on Far-infrared Radiation and Proliferation of Ocherous Cotton Quilt Fabrics

2019 ◽  
Vol 8 (2) ◽  
pp. 71-77
Author(s):  
Ku Yeon Lee ◽  
◽  
Hyung H. Lee ◽  
Suk Chan Hahm
Keyword(s):  
Infrared Radiation ◽  
Far Infrared ◽  
Far Infrared Radiation

scholarly journals High-Pressure Spectroscopy Study of Zn(IO3)2 Using Far-Infrared Synchrotron Radiation

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Akun Liang ◽  
Robin Turnbull ◽  
Enrico Bandiello ◽  
Ibraheem Yousef ◽  
Catalin Popescu ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Synchrotron Radiation ◽  
Infrared Radiation ◽  
Room Temperature ◽  
Far Infrared ◽  
Low Pressure ◽  
Pressure Response ◽  
Spectroscopy Study ◽  
Far Infrared Radiation

We report the first high-pressure spectroscopy study on Zn(IO3)2 using synchrotron far-infrared radiation. Spectroscopy was conducted up to pressures of 17 GPa at room temperature. Twenty-five phonons were identified below 600 cm−1 for the initial monoclinic low-pressure polymorph of Zn(IO3)2. The pressure response of the modes with wavenumbers above 150 cm−1 has been characterized, with modes exhibiting non-linear responses and frequency discontinuities that have been proposed to be related to the existence of phase transitions. Analysis of the high-pressure spectra acquired on compression indicates that Zn(IO3)2 undergoes subtle phase transitions around 3 and 8 GPa, followed by a more drastic transition around 13 GPa.

Far-Infrared Radiation Generated by Current Carrying Nanowires

1996 ◽  
Vol 77 (20) ◽  
pp. 4280-4280
Author(s):  
V. L. Gurevich ◽  
V. B. Pevzner ◽  
G. Iafrate
Keyword(s):  
Infrared Radiation ◽  
Far Infrared ◽  
Far Infrared Radiation

scholarly journals Effects of Combined Far-Infrared Radiation and Acupuncture at ST36 on Peripheral Blood Perfusion and Autonomic Activities

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Cheng-Chan Yang ◽  
Gen-Min Lin ◽  
Jen-Hung Wang ◽  
Hsiao-Chiang Chu ◽  
Hsien-Tsai Wu ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Combined Treatment ◽  
Treatment Strategies ◽  
Blood Perfusion ◽  
Far Infrared ◽  
Peripheral Circulation ◽  
Treatment Area ◽  
Clinical Benefits ◽  
Stage 1 ◽  
Far Infrared Radiation

Using four-channel photoplethysmography (PPG) for acquiring peripheral arterial waveforms, this study investigated vascular and autonomic impacts of combined acupuncture-far infrared radiation (FIR) in improving peripheral circulation. Twenty healthy young adults aged 25.5±4.6 were enrolled for 30-minute measurement. Each subject underwent four treatment strategies, including acupuncture at ST36 (Zusanli), pseudoacupuncture, FIR, and combined acupuncture-FIR at different time points. Response was assessed at 5-minute intervals. Area under arterial waveform at baseline was defined as AreaBaseline, whereas AreaStim referred to area at each 5-minute substage during and after treatment. AreaStim/AreaBaseline was compared at different stages and among different strategies. Autonomic activity at different stages was assessed using low-to-high frequency power ratio (LHR). The results demonstrated increased perfusion for each therapeutic strategy from stage 1 to stage 2 (all p<0.02). Elevated perfusion was noted for all treatment strategies at stage 3 compared to stage 1 except pseudoacupuncture. Increased LHR was noted only in subjects undergoing pseudoacupuncture at stage 3 compared to stage 1 (p=0.045). Reduced LHR at stage 2 compared to stage 1 was found only in combined treatment group (p=0.041). In conclusion, the results support clinical benefits of combined acupuncture-FIR treatment in enhancing peripheral perfusion and parasympathetic activity.

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