A. Uskov, I. Protsenko, R. Ikhsanov, Viktoriia E. Babicheva, S. Zhukovsky, A. Lavrinenko, E. O’Reilly, Hongxing Xu
{"title":"等离子体纳米粒子的热电子光发射:瞬态吸收在表面机制中的作用","authors":"A. Uskov, I. Protsenko, R. Ikhsanov, Viktoriia E. Babicheva, S. Zhukovsky, A. Lavrinenko, E. O’Reilly, Hongxing Xu","doi":"10.1109/METAMATERIALS.2014.6948547","DOIUrl":null,"url":null,"abstract":"We analyze and compare surface- and volume-based internal photoelectric effects from spherical nanoparticles, obtaining analytical expressions for the photoemission rate in both cases. Similar to results for a flat metal surface, one can show that the surface mechanism prevails, since it is unaffected by detrimental hot electron collisions. Transient absorption results from dielectric permittivity discontinuity at the nanoparticle boundary and leads to a substantial (by ~5 times) increase of the photoelectron emission rate.","PeriodicalId":151955,"journal":{"name":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hot electron photoemission from plasmonic nanoparticles: Role of transient absorption in surface mechanism\",\"authors\":\"A. Uskov, I. Protsenko, R. Ikhsanov, Viktoriia E. Babicheva, S. Zhukovsky, A. Lavrinenko, E. O’Reilly, Hongxing Xu\",\"doi\":\"10.1109/METAMATERIALS.2014.6948547\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We analyze and compare surface- and volume-based internal photoelectric effects from spherical nanoparticles, obtaining analytical expressions for the photoemission rate in both cases. Similar to results for a flat metal surface, one can show that the surface mechanism prevails, since it is unaffected by detrimental hot electron collisions. Transient absorption results from dielectric permittivity discontinuity at the nanoparticle boundary and leads to a substantial (by ~5 times) increase of the photoelectron emission rate.\",\"PeriodicalId\":151955,\"journal\":{\"name\":\"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics\",\"volume\":\"22 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-11-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/METAMATERIALS.2014.6948547\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/METAMATERIALS.2014.6948547","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Hot electron photoemission from plasmonic nanoparticles: Role of transient absorption in surface mechanism
We analyze and compare surface- and volume-based internal photoelectric effects from spherical nanoparticles, obtaining analytical expressions for the photoemission rate in both cases. Similar to results for a flat metal surface, one can show that the surface mechanism prevails, since it is unaffected by detrimental hot electron collisions. Transient absorption results from dielectric permittivity discontinuity at the nanoparticle boundary and leads to a substantial (by ~5 times) increase of the photoelectron emission rate.