Journal ArticleDOI
Extraordinary optical transmission through sub-wavelength hole arrays
Thomas W. Ebbesen,Thomas W. Ebbesen,Henri J. Lezec,H. F. Ghaemi,Tineke Thio,Peter A. Wolff,Peter A. Wolff +6 more
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TLDR
In this article, the optical properties of submicrometre cylindrical cavities in metallic films were explored and it was shown that arrays of such holes display highly unusual zero-order transmission spectra at wavelengths larger than the array period, beyond which no diffraction occurs.Abstract:
The desire to use and control photons in a manner analogous to the control of electrons in solids has inspired great interest in such topics as the localization of light, microcavity quantum electrodynamics and near-field optics1,2,3,4,5,6. A fundamental constraint in manipulating light is the extremely low transmittivity of apertures smaller than the wavelength of the incident photon. While exploring the optical properties of submicrometre cylindrical cavities in metallic films, we have found that arrays of such holes display highly unusual zero-order transmission spectra (where the incident and detected light are collinear) at wavelengths larger than the array period, beyond which no diffraction occurs. In particular, sharp peaks in transmission are observed at wavelengths as large as ten times the diameter of the cylinders. At these maxima the transmission efficiency can exceed unity (when normalized to the area of the holes), which is orders of magnitude greater than predicted by standard aperture theory. Our experiments provide evidence that these unusual optical properties are due to the coupling of light with plasmons — electronic excitations — on the surface of the periodically patterned metal film. Measurements of transmission as a function of the incident light angle result in a photonic band diagram. These findings may find application in novel photonic devices.read more
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Lensfree optofluidic plasmonic sensor for real-time and label-free monitoring of molecular binding events over a wide field-of-view
Ahmet F. Coskun,Ahmet F. Coskun,Arif E. Cetin,Arif E. Cetin,Betty C. Galarreta,Betty C. Galarreta,Daniel Adrianzen Alvarez,Hatice Altug,Hatice Altug,Aydogan Ozcan +9 more
TL;DR: A high-throughput biosensing device that utilizes microfluidics based plasmonic microarrays incorporated with dual-color on-chip imaging toward real-time and label-free monitoring of biomolecular interactions over a wide field-of-view of >20 mm2, and introduces a deep ultra-violet lithography technique to simultaneously pattern thousands of plAsmonic arrays in a cost-effective manner.
Journal ArticleDOI
Metamaterial covers over a small aperture
TL;DR: In this paper, the authors discussed the mechanism and analysis for another setup, in which metamaterial layers with special parameters may be utilized as covers over a single sub-wavelength aperture in a perfectly electric conducting (PEC) flat screen in order to increase the wave transmission through this aperture, and provided a detailed physical insights and analytical explanation for this aperture setup.
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Transition from localized surface plasmon resonance to extended surface plasmon-polariton as metallic nanoparticles merge to form a periodic hole array
TL;DR: In this paper, the dispersion of the plasmon modes associated with periodic silver nanoparticles and nanohole arrays fabricated using an extension of the nanosphere lithography technique was investigated.
Journal ArticleDOI
The use of plasmonics in light beaming and focusing
TL;DR: In this paper, the use of plasmonics to shape light spatially in air and to focus surface Plasmon polaritons (SPPs) on a metal surface is discussed.
Journal ArticleDOI
Transmission properties of slanted annular aperture arrays. Giant energy deviation over sub-wavelength distance.
Tahseen A. Alaridhee,Abdoulaye Ndao,Maria-Pilar Bernal,Evgueni Popov,Anne-Laure Fehrembach,Fadi Issam Baida +5 more
TL;DR: The results presented in this paper could be considered as an important contribution to the understanding of the enhanced transmission phenomenon based on the excitation of guided modes.
References
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Principles of Optics
TL;DR: In this paper, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
Principles of Optics
TL;DR: In this article, the authors discuss various topics about optics, such as geometrical theories, image forming instruments, and optics of metals and crystals, including interference, interferometers, and diffraction.
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Theory of Diffraction by Small Holes
TL;DR: In this paper, the diffraction of electromagnetic radiation by a hole small compared with the wave-length is treated theoretically, and a complete solution is found satisfying Maxwell's equations and the boundary conditions everywhere.
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Near-Field Optics: Microscopy, Spectroscopy, and Surface Modification Beyond the Diffraction Limit
Eric Betzig,Jay K. Trautman +1 more
TL;DR: The near-field optical interaction between a sharp probe and a sample of interest can be exploited to image, spectroscopically probe, or modify surfaces at a resolution inaccessible by traditional far-field techniques, resulting in a technique of considerable versatility.
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Far-infrared properties of metallic mesh and its complementary structure
TL;DR: In this article, the optical properties of thin metallic mesh (inductive grids) are compared theoretically and experimentally with the properties of the complementary structure (capacitive grids) close interrelations are found in the non-diffraction region (wavelength > grid constant).