Transmittance of Electromagnetic Radiation of the Visible Range by a Thin Film of Ice 0 Condensed on a Dielectric Substrate

Bordonskiy, G. S.; Gurulev, A. A.; Orlov, A. Yu.

doi:10.1134/s0021364020050070

Cited by 6 publications

(13 citation statements)

References 10 publications

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“…The reflection of thermal radiation from the earth's surface from this structure led to an increase in brightness temperature. The fact is that when a ferroelectric and a dielectric come into contact, layers of nanometer thickness with metallic properties [6,7] are formed, which lead to an increase in brightness and radiation temperature. Supercooled water can penetrate into the pore space of various natural objects.…”

Section: Experiments Resultsmentioning

confidence: 99%

Radiometric research of the winter atmosphere in the city of Chita in the infrared and microwave ranges

Gurulev,

Kazantsev,

Kozlov

2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The work presents the results of long radiometric measurements of the atmosphere in the city of Chita during the winter period at a frequency of 34 GHz. The power of thermal radiation was also recorded in the thermal infrared range (7…14 μm). Simultaneously with the readings of the brightness and radiation temperature, meteorological parameters of the atmospheric ground level layer and illumination were recorded. As a result, an increase in the value of the radiation temperature in the IR range by 20 K and up to 1 K at a frequency of 34 GHz was detected during the freezing of fog at an ambient air temperature in the surface layer of -25 °C. In addition, variations in atmospheric thermal radiation were detected during cloudiness and pollution with soot aerosol particles

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Section: Experiments Resultsmentioning

confidence: 99%

Radiometric research of the winter atmosphere in the city of Chita in the infrared and microwave ranges

Gurulev,

Kazantsev,

Kozlov

2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…To obtain film of ice deposited on the sample plate, a method described in [5] was used. The sample was cooled by intensive ousting of air from the thermostat with nitrogen vapor.…”

Section: The Experimental Techniquementioning

confidence: 99%

“…The conclusion regarding formation of ice 0 was made on the basis of theoretically predicted properties of this ice, namely, manifestation of the ferroelectric state and the value of the temperature of phase transition. It was demonstrated in the further work [5] that ice 0 deposited onto a dielectric plate caused strong attenuation of the electromagnetic waves of the visible band of the spectrum. That occurs because at the interface between ferroelectric ice 0 and dielectric, there appears a nanometric layer having high conductivity.…”

Section: Introductionmentioning

confidence: 99%

A method of measuring transmittance of radiation from the film of ice 0 in the IR wave band deposited on a dielectric plate

Orlov

Gurulev

Tsyrenzhapov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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A method of measuring transmittance of radiation from the film of ice 0 in the infrared wave band is described. Ice 0 is formed from supercooled water at the temperature below –23°C. This ice is ferroelectric and forms a highly conductive layer of the nanometric order of thickness at the boundary with dielectric. The complexity of the experiment consisted in the necessity of using low intensities of the probing signal and considering radiation of the cooled parts of the installation. In order to obtain a thin film of ice, the method of depositing water vapor on a substrate cooled in nitrogen was used. The method rules out formation of condensate in cooling. Deposition of water vapor is possible only in heating, when delivery of cold nitrogen vapor into the chamber with the sample is excluded. To ensure exposure of the film to IR radiation, two sources of infrared radiation were considered: a halogen lamp with a broad radiation spectrum (on the surface of heated glass) and a CO2 laser with the radiation wavelength of 10.6 µm. In the first case, spectral measurements are possible when filters are used. In the installation based on a CO2 laser, an intense signal is emitted, requiring consideration of sample heating. Components of the installation have been elaborated and investigated, on which transmittance of radiation from the film of ice 0 is planned to be measured.

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“…The measurement cell was placed into a thermostat chamber (2). Cold nitrogen vapor was fed into the thermostat from the Dewar flask when the resistor was heated (5). A thermal resistor was used to control delivery of the cold vapor in the system (7).…”

Section: Figurementioning

confidence: 99%

“…Previously we made measurements of permittivity of electromagnetic radiation in the optical band through specimens of transparent dielectrics with a thin layer of ice 0 of the nanometric thickness on their surface [5]. Ice 0 was obtained by deposition of water vapor at the temperatures from -170 to -23 °C.…”

Section: Introductionmentioning

confidence: 99%

Discovering formation of ice 0 by low-frequency measurement data

Orlov

Tsyrenzhapov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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In this work, low-frequency characteristics of wetted nanoporous silicate materials were measured, as well as the specimen’s own low-frequency electric fluctuations at the frequencies of 1…100 Hz. The measurements at low frequencies were conducted at different voltages of the probing signal. A capacity cell was used in making the measurements. In the experiments, at the temperatures below –25…–30 °C, non-linearity of the medium was discovered. The experiments on the study of the specimen’s own electric fluctuations at these temperatures revealed their essential increase. These temperatures are below the point of phase transition of supercooled water to recently discovered ferroelectric ice 0. Based on the measurements made, a conclusion was made regarding formation of this modification of ice in the nanosize pores of the wetted materials under study. Ice 0 is a ferroelectric; therefore, its formation from deeply supercooled water may have a significant impact on the electric parameters of wetted bodies at the temperatures below –23 °C. At the interface of such ice with another dielectric, a thin layer with practically metallic conductivity emerges. Such a layer influences not only the non-linear dependence of dielectric permittivity on the electric field but also increases attenuation of electromagnetic radiation in a medium.

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Transmittance of Electromagnetic Radiation of the Visible Range by a Thin Film of Ice 0 Condensed on a Dielectric Substrate

Cited by 6 publications

References 10 publications

Radiometric research of the winter atmosphere in the city of Chita in the infrared and microwave ranges

Radiometric research of the winter atmosphere in the city of Chita in the infrared and microwave ranges

A method of measuring transmittance of radiation from the film of ice 0 in the IR wave band deposited on a dielectric plate

Discovering formation of ice 0 by low-frequency measurement data

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