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3 October 2022 Optical field mapping of nanostructures by means of vibrational spectroscopic techniques
Ryo Kato, Taka-aki Yano, Takayuki Umakoshi, Prabhat Verma, Takuo Tanaka
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Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC121970E (2022) https://doi.org/10.1117/12.2631957
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
The confinement and the enhancement of optical fields in the vicinity of metallic or dielectric nanostructures provide versatile applications in nanoscale devices and spectroscopies. It is therefore of great importance to investigate optical properties of nanostructures, such as the distribution of optical fields on the nanometer scale. In this work, we visualized the nanoscale distribution of optical fields induced by metallic and dielectric nanostructures in visible and infrared region, respectively. We utilized enhanced vibrational spectroscopies, such as a mid-infrared photothermal microscopy technique and a tip-enhanced Raman spectroscopy-based technique to study optical fields of nanostructures at the nanoscale.
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Ryo Kato, Taka-aki Yano, Takayuki Umakoshi, Prabhat Verma, and Takuo Tanaka "Optical field mapping of nanostructures by means of vibrational spectroscopic techniques", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC121970E (3 October 2022); https://doi.org/10.1117/12.2631957
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KEYWORDS
Nanostructures
Spectroscopy
Dielectrics
Infrared radiation
Optical properties
Raman spectroscopy
Spectroscopes
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