PatentDOI
Plasmon lasers at deep subwavelength scale
TLDR
Hybrid plasmonic waveguides as discussed by the authors employ a high-gain semiconductor nanostructure functioning as a gain medium that is separated from a metal substrate surface by a nanoscale thickness thick low-index gap.Abstract:
Hybrid plasmonic waveguides are described that employ a high-gain semiconductor nanostructure functioning as a gain medium that is separated from a metal substrate surface by a nanoscale thickness thick low-index gap. The waveguides are capable of efficient generation of sub-wavelength high intensity light and have the potential for large modulation bandwidth >1 THz.read more
Citations
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Journal ArticleDOI
Ultra-broadband unidirectional launching of surface plasmon polaritons by a double-slit structure beyond the diffraction limit
TL;DR: By designing a submicron double-slit structure with different slit widths, an ultra-broadband (>330 nm) unidirectional SPP launcher is realized theoretically and experimentally based on the different phase delays of SPPs propagating along the metal surface and the near-field interfering effect.
Journal ArticleDOI
Ultrafast Charge Transfer and Trapping Dynamics in a Colloidal Mixture of Similarly Charged CdTe Quantum Dots and Silver Nanoparticles
Navendu Mondal,Anunay Samanta +1 more
TL;DR: In this paper, the interaction between colloidal CdTe quantum dots (QDs) and silver nanoparticles (Ag NPs), both in their negatively charged state, is studied to determine the importance of surface charge and epitaxial coupling of the two components to achieve the potential activity of the metal-semiconductor nanocomposites.
Journal ArticleDOI
A Sub- $\lambda$ -Size Modulator Beyond the Efficiency-Loss Limit
TL;DR: In this paper, an ultracompact electroabsorption modulator based on a plasmonic MOS-mode design is analyzed and the extinction ratio and insertion loss of the device as a function of various geometric parameters.
Journal ArticleDOI
Distributed feedback imprinted electrospun fiber lasers.
Luana Persano,Andrea Camposeo,Pompilio Del Carro,Vito Fasano,Maria Moffa,Rita Manco,Stefania D’Agostino,Stefania D’Agostino,Dario Pisignano +8 more
TL;DR: Imprinted, distributed feedback lasers are demonstrated on individual, active electrospun polymer nanofibers, showing a significant threshold reduction compared to conventional thin-film lasers and the possibility of imprinting arbitrary photonic crystal geometries on Electrospun lasing nanofibrers opens new opportunities for realizing optical circuits and chips.
Journal ArticleDOI
Terahertz Radiation from Combined Metallic Slit Arrays.
Dazhi Li,Makoto Nakajima,Masahiko Tani,Jinfeng Yang,Hideaki Kitahara,Masaki Hashida,Makoto Asakawa,Wenxin Liu,Yanyu Wei,Ziqiang Yang +9 more
TL;DR: It is found that the combination of the two slit arrays could provide special electromagnetic modes, which exhibit nonradiative property above the surface of one slit array and radiative property inside the other one, indicating that the approach has the potential in developing high-performance terahertz radiation sources.
References
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Journal ArticleDOI
Optical Constants of the Noble Metals
P. B. Johnson,R. W. Christy +1 more
TL;DR: In this paper, the optical constants for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at room temperature, in the spectral range 0.5-6.5 eV.
Book
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Journal ArticleDOI
Biosensing with plasmonic nanosensors
TL;DR: This paper introduces the localized surface plasmon resonance (LSPR) sensor and describes how its exquisite sensitivity to size, shape and environment can be harnessed to detect molecular binding events and changes in molecular conformation.
Journal ArticleDOI
Resonance Absorption by Nuclear Magnetic Moments in a Solid
Journal ArticleDOI
Single-nanowire electrically driven lasers
TL;DR: In this paper, the authors investigate the feasibility of achieving electrically driven lasing from individual nanowires and show that these structures can function as Fabry-Perot optical cavities with mode spacing inversely related to the nanowire length.