| Название: | Methods of measuring the depth of penetration of the field of terahertz surface plasmon-polaritons into air |
|---|---|
| Авторы и аффилиации: |
Kukotenko V.D. (основной автор / докладчик) Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences Gerasimov V.V. Novosibirsk State University Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences Lemzyakov A.G. Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences Scientific and Technological Center of Unique Instrumentation, Russian Academy of Sciences Nikitin A.K. Scientific and Technological Center of Unique Instrumentation, Russian Academy of Sciences |
| Аннотация: | Two methods for measuring the penetration depth of the surface plasmon polariton (SPP) field using quasi-monochromatic terahertz radiation from the Novosibirsk free electron laser (λ = 141 μm) are proposed and tested: a probe method with modulation of the radiation by a shutter or modulation of the diffracting fraction of the SPP field by oscillations of a probe embedded in it and a screening method that records the intensity of SPPs that have passed under a metal screen. In both methods, to reduce the proportion of parasitic illumination from volumetric waves, it is proposed to use a fracture of the sample surface or conversion elements (radiation to SPP and back) of cylindrical shape. The results of experiments on assessing the depth of penetration of the SPP field into the air by both methods are consistent with each other. The advantages and disadvantages of these methods, as well as the conditions for their application when working with samples containing and not containing a dielectric coating, are identified. |
| Тип: | Журнал |
| Название журнала: | INSTRUMENTS AND EXPERIMENTAL TECHNIQUES |
| Том: | 68 |
| Страницы: | 86-95 |
| Номера тем гос.задания: | FFNS-2025-0007 |
| DOI: | 10.1134/S0020441225700162 |
| ISSN: | 0020-4412 |
| Ссылка на страницу в eLIBRARY: | https://www.elibrary.ru/item.asp?id=82549146 |
| eLIBRARY ID: | 82549146 |
| Код EDN: | WOLEYE |
| Рекомендуемая библиографическая ссылка: | Kukotenko V.D., Gerasimov V.V., Lemzyakov A.G., Nikitin A.K. Methods of measuring the depth of penetration of the field of terahertz surface plasmon-polaritons into air // INSTRUMENTS AND EXPERIMENTAL TECHNIQUES. 2025. Vol. 68. P. 86-95. EDN: WOLEYE. DOI: 10.1134/S0020441225700162. |