Инд. авторы: | Ivanov S.D., Kostsov E.G |
Заглавие: | Thermal Detectors of Uncooled Multi-Element Infrared Imaging Arrays. II. New Thermally Uninsulated Elements |
Библ. ссылка: | Ivanov S.D., Kostsov E.G Thermal Detectors of Uncooled Multi-Element Infrared Imaging Arrays. II. New Thermally Uninsulated Elements // Optoelectronics, Instrumentation and Data Processing. - 2016. - Vol.52. - Iss. 1. - P.86-95. - ISSN 8756-6990. - EISSN 1934-7944. |
Внешние системы: | DOI: 10.3103/S8756699016010131; SCOPUS: 2-s2.0-84969579990; WoS: 000381640200013; |
Реферат: | eng: A new approach to constructing the thermal element of a multi-element array on the basis of thin pyroelectric films is developed: the element is neither thermally insulated from the substrate nor separated by a gap from the substrate surface; instead, it operates owing to accumulation of the charge generated by infrared radiation during the frame. A new principle of high-speed modulation of radiation is described. Experimental results for the behavior of the pyroelectric coefficient in barium-strontium niobate films (BaxSr1-xNb2O6), whose values reach up to (1-2) . 10(-3) C/m(2), are presented. It is demonstrated that the specific detectivity of sensitive elements 12 x 12 mu m in size in the charge accumulation mode is greater than 10(9) cm . Hz(0.5) . W-1.
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Ключевые слова: | ELECTROSTATIC MICROMOTORS; thermal diffusion; pyroelectric charge; FILMS; pyroelectric films; thermal detectors of infrared radiation; infrared equipment; megapixel array; |
Издано: | 2016 |
Физ. характеристика: | с.86-95 |