Rudolf Haindl, Kerim Köster, John H. Gaida, Maximilian Franz, A. Feist, C. Ropers
{"title":"Linear Femtosecond Tunable-Wavelength Photoassisted Cold Field Emission","authors":"Rudolf Haindl, Kerim Köster, John H. Gaida, Maximilian Franz, A. Feist, C. Ropers","doi":"10.1109/IVNC57695.2023.10189020","DOIUrl":null,"url":null,"abstract":"We observe photoassisted cold field emission from a W(310) tip induced by tunable-wavelength low-power femtosecond laser excitation with photon energies Ø from 2.5 eV to 3.1 eV. The emission current from the apex of the (310)-oriented single-crystalline emitter is shown to linearly depend on incident laser power, while the effective work function is reduced by the respective photon energy.","PeriodicalId":346266,"journal":{"name":"2023 IEEE 36th International Vacuum Nanoelectronics Conference (IVNC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2023 IEEE 36th International Vacuum Nanoelectronics Conference (IVNC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IVNC57695.2023.10189020","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We observe photoassisted cold field emission from a W(310) tip induced by tunable-wavelength low-power femtosecond laser excitation with photon energies Ø from 2.5 eV to 3.1 eV. The emission current from the apex of the (310)-oriented single-crystalline emitter is shown to linearly depend on incident laser power, while the effective work function is reduced by the respective photon energy.