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|Title:||Active tailoring of nanoantenna plasmonic fields using few-cycle laser pulses||Authors:||Choi, S.
Ciappina, M. F.
Pérez-Hernández, J. A.
Landsman, A. S.
Kim, S. C.
Kim, Dong Eon
Pulse Repetition Rate
|Issue Date:||2016||Source:||Choi, S., Ciappina, M. F., Pérez-Hernández, J. A., Landsman, A. S., Kim, Y.-J., Kim, S. C., & Kim, D. E. (2016). Active tailoring of nanoantenna plasmonic fields using few-cycle laser pulses. Physical Review A, 93(2), 021405-. doi : 10.1103/PhysRevA.93.021405||Series/Report no.:||Physical Review A||Abstract:||Plasmonic nanoatennas are a versatile tool for coherently manipulating light on a nanoscale by confining electric fields of the driving laser into subwavelength volumes, thereby significantly enhancing electric near fields. It is normally assumed that the time-dependent spectral properties of these near fields are independent of the duration of the driving laser pulse. Here we show that when a few-cycle laser pulse shines on a bow-tie nanoantenna, its spectral properties are dramatically modified, as evidenced by a large shift of the center wavelength of the near field, relative to the driving laser. In addition, for certain geometries, a second color appears in the near field, creating conditions for generation of an isolated attosecond pulse at megahertz repetition rate. Our results open the door to frequency-tunable ultrafast sources at nanometer scale without tuning the frequency of the driving laser.||URI:||https://hdl.handle.net/10356/89565
|ISSN:||1050-2947||DOI:||10.1103/PhysRevA.93.021405||Rights:||© 2016 American Physical Society (APS). This paper was published in Physical Review A - Atomic, Molecular, and Optical Physics and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevA.93.021405]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MAE Journal Articles|
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