手法を比較

	プラズモン共鳴	フーリエ光学
分野	光学	光学
系統	Process / pipeline	Process / pipeline
提唱年	1968	1822
提唱者	Erich Kretschmann and Heinz Raether	Joseph Fourier and Ernst Abbe
種類	Resonance phenomenon	Spectral decomposition method
原典	Kretschmann, E., & Raether, H. (1968). Radiative decay of non radiative surface plasmons excited by light. Zeitschrift für Naturforschung A, 23(12), 2135-2136.	Goodman, J. W. (1968). Introduction to Fourier Optics. McGraw-Hill.
別名	surface plasmon resonance, localized surface plasmon resonance, LSPR, SPR	frequency-domain optics, wave optics, diffraction theory
関連	3	3
概要	Plasmonic resonance refers to the collective oscillation of free electrons in metallic nanostructures that interact strongly with light, resulting in dramatic enhancements of electric fields, absorption, and scattering. First discovered by Kretschmann and Raether in 1968, plasmonic resonance is now central to nanophotonics, enabling applications from biosensing to photothermal therapy and advanced optical devices with subwavelength control.	Fourier optics is a mathematical framework that analyzes optical systems and phenomena using Fourier transforms and frequency-domain methods. Grounded in Joseph Fourier's 1822 work on heat diffusion and Ernst Abbe's microscopy theory, this approach decomposes optical fields into plane waves or spatial frequencies, revealing how optical systems manipulate and filter these components to produce images and transmit information.