Modeling of Laser-Induced Plasmon Effects in GNS-DLC-Based Material for Application in X-ray Source Array Sensors
| Autor: | Valery V. Tuchin, Garif G. Akchurin, Nikolay P. Aban’shin, Sergey V. Zarkov, Alexander N. Yakunin, Yuri A. Avetisyan |
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| Rok vydání: | 2021 |
| Předmět: |
эмиссия электронов
источники рентгеновского излучения Materials science Diamond-like carbon X-ray biosensor 02 engineering and technology Electron lcsh:Chemical technology гибридные материалы 01 natural sciences Biochemistry Article Analytical Chemistry law.invention X-ray source diamond-like carbon 010309 optics law 0103 physical sciences lcsh:TP1-1185 Electrical and Electronic Engineering Surface plasmon resonance wavelength dependence surface plasmon effect Instrumentation Image resolution Nanoscopic scale Plasmon business.industry gold nanostar hybrid material hot electron горячие электроны Current source 021001 nanoscience & nanotechnology Laser биосенсоры алмазоподобный углерод Atomic and Molecular Physics and Optics photoinduced electron emission Optoelectronics 0210 nano-technology business золотые нанозвезды |
| Zdroj: | Sensors, Vol 21, Iss 1248, p 1248 (2021) Sensors. 2021. Vol. 21, № 4. P. 1248 (1-14) Sensors Volume 21 Issue 4 Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s21041248 |
| Popis: | An important direction in the development of X-ray computed tomography sensors in systems with increased scanning speed and spatial resolution is the creation of an array of miniature current sources. In this paper, we describe a new material based on gold nanostars (GNS) embedded in nanoscale diamond-like carbon (DLC) films (thickness of 20 nm) for constructing a pixel current source with photoinduced electron emission. The effect of localized surface plasmon resonance in GNS on optical properties in the wavelength range from UV to near IR, peculiarities of localization of field and thermal sources, generation of high-energy hot electrons, and mechanisms of their transportation in vacuum are investigated. The advantages of the proposed material and the prospects for using X-ray computed tomography in the matrix source are evaluated. |
| Databáze: | OpenAIRE |
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