搜索结果: 1-15 共查到“光学工程 Subwavelength”相关记录25条 . 查询时间(0.29 秒)
Spectral light separator based on deep-subwavelength resonant apertures in a metallic film
Spectral light separator deep-subwavelength resonant apertures metallic film
2014/8/6
We propose to funnel, select, and collect light spectrally by exploiting the unique properties of deep-subwavelength resonant apertures in a metallic film. In our approach, each aperture has an ...
Routing of Deep-Subwavelength Optical Beams and Images without Refl ection and Diffraction Using Infi nitely Anisotropic Metamaterials
Deep-Subwavelength Optical Beams Images without nitely Anisotropic
2013/8/7
Many photonic structures, including waveguides, lenses, and photonic bandgap materials, benefi t greatly from the large index contrast provided by such media.
Deep subwavelength plasmonic waveguide switch in double graphene layer structure
Deep subwavelength plasmonic waveguide switch double graphene layer structure
2013/8/7
Graphene provides excellent prospects of the dynamic tunability, low propagation loss, and extreme mode confinement for plasmonic excitations in the infra-red and terahertz frequencies.We show t...
Design of subwavelength superscattering nanospheres
subwavelength superscattering nanospheres
2011/8/10
We design a subwavelength superscattering nanosphere with plasmonic-dielectric-plasmonic layer structure. We show that the scattering cross section of such a particle can be significantly enhanc...
Image transfer with subwavelength resolution to metal–dielectric interface
Image transfer subwavelength resolution metal–dielectric interface
2011/8/10
In image transfer, one aims to reproduce at an image plane the field distribution of the field at the source plane. We consider a near-field image transfer scheme where an image with subwavelength res...
Fully CMOS Compatible Subwavelength Plasmonic Slot Waveguides for Si Electronic-Photonic Integrated Circuits
Plasmonics Waveguides Photonic integrated circuits
2011/5/22
Subwavelength horizontal Al/SiO 2 /Si/SiO 2 /Al plasmonic slot waveguides with SiO 2 width at each side of 15 nm and Si width of 136, 87, and 43 nm are fabricated on SO...
Fabrication-error-tolerant, Hybrid Wedge Plasmon Polariton Waveguides for Ultra-deep-subwavelength Mode Confinement at 1550nm Wavelength
Fabrication-error-tolerant Hybrid Wedge Plasmon Polariton Waveguides
2011/5/15
A novel hybrid plasmonic waveguide based on a triangular metal wedge is proposed. The structure could achieve ultra-deep-subwavelength mode confinement with low-loss, while its mode properties are sti...
Superscattering of Light from Subwavelength Nanostructures
Superscattering Light Subwavelength Nanostructures
2010/8/10
We provide a theoretical discussion of the scattering cross section of individual subwavelength structures. We show that, in principle, an arbitrarily large total cross section can be achieved, provid...
High-Density Periodic Arrays of Self-Aligned Subwavelength Nanopyramids for Surface-Enhanced Raman Spectroscopy
High-Density Periodic Self-Aligned Subwavelength Nanopyramids Surface-Enhanced Raman Spectroscopy
2010/7/6
Novel nanotextured surfaces are presented with periodically self-aligned subwavelength nanogroove and nanopyramid structures with precisely defined pitch λg that are closely packed with 2 nm separatio...
Subwavelength Semiconductor Nanocavity Laser
Semiconductor lasers Nanophotonics photonic crystals
2010/6/5
We report the smallest metallo-dielectric cavity semiconductor laser to our knowledge operating at near-infrared frequencies. The laser consists of an InGaAsP patch sandwiched by gold. We observe lasi...
Extraordinary optical absorption through subwavelength slits
Extraordinary optical subwavelength slits
2009/8/10
We report on the ability of resonant plasmonic slits to efficiently concentrate electromagnetic energy into a nanoscale volume of absorbing material placed inside or directly behind the slit. Th...
Deep-Subwavelength Focusing and Steering of Light in an Aperiodic Metallic Waveguide Array
Deep-Subwavelength Focusing Light Aperiodic Metallic Waveguide Array
2009/8/10
We consider an aperiodic array of coupled metallic waveguides with varying subwavelength widths.For an incident plane wave, we numerically demonstrate that a focus of as small as one-hundredth of a wa...
Subwavelength Grating Structures in Silicon-on-Insulator Waveguides
Subwavelength Grating Structures Silicon-on-Insulator Waveguides
2009/5/19
First implementations of subwavelength gratings (SWGs) in silicon-on-insulator (SOI) waveguides are discussed and demonstrated by experiment and simulations. The subwavelength effect is exploited for ...
The Subwavelength Optical Field Confinement in a Multilayered Microsphere with Quasiperiodic Spherical Stack
Multilayered Microsphere Quasiperiodic Spherical Stack
2008/10/31
We study the frequency spectrum of nanoemitters placed in a microsphere with a quasiperiodic subwavelength spherical stack. The spectral evolution of transmittancy at the change of thickness of two-la...
Using a Semiconductor-to-Metal Transition to Control Optical Transmission through Subwavelength Hole Arrays
Subwavelength Hole Arrays Semiconductor
2008/10/31
We describe a simple configuration in which the extraordinary optical transmission effect through subwavelength hole arrays in noble-metal films can be switched by the semiconductor-to-metal transitio...