Journal
CURRENT OPTICS AND PHOTONICS
Volume 6, Issue 6, Pages 576-582Publisher
OPTICAL SOC KOREA
DOI: 10.3807/COPP.2022.6.6.576
Keywords
Coherent extreme-ultraviolet pulse; High-order harmonic generation; Nanophotonics; Plasmonics; Ultrafast nonlinear optics
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Funding
- FUNDING National Research Foundation of Korea (NRF) [2021R1C1C100982511]
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Plasmonic high-order harmonic generation (HHG) is commonly used in nanoscale optical applications. This study theoretically calculates the plasmonic amplification in a metal-coated sapphire conical structure and analyzes its effects on HHG and sample damage.
Plasmonic high-order harmonic generation (HHG) is used in nanoscale optical applications because it can help in realizing a compact coherent ultrashort pulse generator on the nanoscale, using plasmonic field enhancement. The plasmonic amplification of nanostructures induces nonlinear optical phenomena such as second-order harmonic generation, third-order harmonic generation, frequency mixing, and HHG. This amplification also causes damage to the structure itself. In this study, the plasmonic amplification according to the design of a metal-coated sapphire conical structure is theoretically calculated, and we analyze the effects of this optical amplification on HHG and damage to the sample.
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