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Information × Registration Number 0221U104593, 0120U000280 , R & D reports Title Creation and introduction of ultra-sensitive biorefractometric systems on the basis of modulation polarimetry for determination of properties of various substances. popup.stage_title Head Serdega Borys K., Доктор фізико-математичних наук Registration Date 02-04-2021 Organization VE Lashkarev Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine popup.description2  An improved optical scheme of a modulation spectropolarimeter has been developed, which is designed to determine the concentration of certain substances in gas mixtures and solutions. The design of the device provides for registration the intensity of the light circular component to increase sensitivity. The circular component arose upon internal reflection of the probe beam from a resonantly sensitive ultra thin film relatively to the zero signal. Mechanical, optical and electronic components of high-frequency (f = 80kHz) modulation spectropolarimeter made. Their installation and certification tests of the device are performed. The limiting sensitivity of the device reaches the value of a change of the refractive index of the external environment at the level of 10-8 when using metal films with a periodic nanostructure as a sensory element. Product Description popup.authors Minailova Irina A. Mischuk Oleg M. Maksimenko Lidiya S. Matyash Igor Ye. Stetsenko Maksym O. popup.nrat_date 2021-04-02 Close