Photonic Nanojet Generation in Transmission and Reflection Mode
| Autor: | S. S. Voznesenskiy, Alexander A. Sergeev, K. A. Sergeeva, Aleksandr Vladimirovich Nepomniaschiy |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication business.industry Mode (statistics) Physics::Optics 02 engineering and technology Photonic nanojet 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Transmission (telecommunications) 0103 physical sciences Reflection (physics) Optoelectronics General Materials Science 0210 nano-technology business Luminescence |
| Zdroj: | Solid State Phenomena. 312:213-220 |
| ISSN: | 1662-9779 |
| Popis: | This paper is related to the problem of enhancing the optical and functional performance of luminescent gas sensors via its excitation by photonic nanojets. The novel sensor structure consisting of the array of alumina microparticles covered by optical sensitive layer was designed. The parameters of the photonic nanojets generated in both transmission and reflection modes has been numerically end experimentally studied. It was shown that PNJ in reflection mode demonstrates an unexpectedly high enhancement of photoluminescence. It was obtained that the excitation of the sensitive layer by photonic nanojets extends the limit of gaseous ammonia detection up to 0.1 ppm for reflection mode and up to 0.02 ppm for transmission mode. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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