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Author |
Novotny, Lukas; van Hulst, Niek |
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Title |
Antennas for light |
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Journal Article |
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Year |
2011 |
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Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
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5 |
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2 |
Pages |
83-90 |
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Keywords |
optical antennas |
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Abstract |
Optical antennas are devices that convert freely propagating optical radiation into localized energy, and vice versa. They enable the control and manipulation of optical fields at the nanometre scale, and hold promise for enhancing the performance and efficiency of photodetection, light emission and sensing. Although many of the properties and parameters of optical antennas are similar to their radiowave and microwave counterparts, they have important differences resulting from their small size and the resonant properties of metal nanostructures. This Review summarizes the physical properties of optical antennas, provides a summary of some of the most important recent developments in the field, discusses the potential applications and identifies the future challenges and opportunities. |
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no |
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RPLAB @ gujma @ |
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748 |
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Author |
Akalin, Tahsin |
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Title |
Terahertz sources: Powerful photomixers |
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Journal Article |
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Year |
2012 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
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6 |
Issue |
2 |
Pages |
81 |
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fromIPMRAS |
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An efficient continuous-wave source of terahertz radiation that combines the outputs from two near-infrared semiconductor lasers in a novel photomixer looks set to benefit applications in spectroscopy and imaging. |
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no |
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RPLAB @ gujma @ |
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787 |
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Author |
Xu, XinAn; Wong, Chee Wei |
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Title |
Quantum optics: Correlations on a chip |
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Journal Article |
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Year |
2012 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
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6 |
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Pages |
75-76 |
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fromIPMRAS |
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Researchers have developed a semiconductor structure capable of supporting quantum correlations between photons and strong single-photon nonlinearities, thus paving the way for the development of chip-based devices for quantum secure communications and quantum information processing. |
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no |
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RPLAB @ gujma @ |
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782 |
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Zhu, J.; Christensen, J.; Jung, J.; Martin-Moreno, L.; Yin, X.; Fok, L.; Zhang, X.; Garcia-Vidal, F. J. |
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A holey-structured metamaterial for acoustic deep-subwavelength imaging |
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Journal Article |
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2011 |
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Nature Physics |
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Nat. Phys. |
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7 |
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1 |
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52-55 |
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fromIPMRAS |
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For classical waves such as light or sound, diffraction sets a natural limit on how finely the details of an object can be recorded on its image. Recently, various optical superlenses based on the metamaterials concept have shown the possibility of overcoming the diffraction limit. Similar two-dimensional (2D) acoustic hyperlens designs have also been explored. Here we demonstrate a 3D holey-structured metamaterial that achieves acoustic imaging down to a feature size of λ/50. The evanescent field components of a subwavelength object are efficiently transmitted through the structure as a result of their strong coupling with Fabry-Pérot resonances inside the holey plate. This capability of acoustic imaging at a very deep-subwavelength scale may open the door for a broad range of applications, including medical ultrasonography, underwater sonar and ultrasonic non-destructive evaluation. |
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RPLAB @ gujma @ |
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809 |
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Author |
Pile, David |
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Title |
How many bits can a photon carry |
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Journal Article |
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Year |
2012 |
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Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
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Volume |
6 |
Issue |
1 |
Pages |
14-15 |
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fromIPMRAS |
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Quantum physics offers a way to enhance the amount of information a photon can carry, with potential applications in optical communication, lithography, metrology and imaging. |
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View from... OSA Frontiers in Optics 2011: How many bits can a photon carry? |
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no |
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RPLAB @ gujma @ |
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780 |
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