Abstract The resistance of platinum filament on heating to different temperatures have been measured. Measurements showed platinum wire resistivity matching to tabulated values, and therefore can be used to obtain the temperature dependence of conductors used in bolometric measurers of radiation.The results obtained make it possible to createabsolute bolometricmeasurer of continuous power and pulse energy of laser radiation.

Abstract The effect of an anomalously large absorption of electromagnetic radiation in very thin conducting fibers was investigated. Efficiency factor of absorption can reach several hundred for a fiber with a diameter of several micrometers in the centimeter wavelength range. The effect can be used to transfer the energy of electromagnetic radiation to thin fibers without focusing radiation.