搜索结果: 1-15 共查到“光学工程 Modes”相关记录29条 . 查询时间(0.15 秒)
Broadband light management using low-Q whispering gallery modes in spherical nanoshells
Broadband light management whispering gallery modes spherical nanoshells
2013/8/7
Light trapping across a wide band of frequencies is important for applications such as solar cells and photodetectors. Here, we demonstrate a new approach to light management by forming whispering-gal...
Temporal coupled mode theory for thermal emission from a single thermal emitter supporting either a single mode or an orthogonal set of modes
Temporal coupled thermal emission single thermal emitter supporting either
2013/8/7
We propose a temporal coupled mode theory for thermal emission from a single emitter supporting either a single mode or an orthogonal set of modes. This temporal coupled mode theory provides analytic ...
Tunable Reflection Bands and Defect Modes in One-Dimensional Tilted Photonic Crystal Structure
Photonic Crystal Structure Photonic Band Gap (PBG) Omnidirectional Reflector Tilted PC Structure De-fect Modes
2012/9/28
We show theoretically that range of reflection bands and defect modes inside the band gap can be tuned by using a one-dimensional tilted photonic crystal (TPC) structure. A TPC structure is similar to...
Extraordinarily high spectral sensitivity in refractive index sensors using multiple optical modes
Sensors Surface plasmons Resonators
2011/8/10
The extraordinary spectral sensitivity of surface plasmon resonance (SPR) sensors is commonly attributed to the modal overlap or unique dispersion of surface plasmons. In contrast to this belief, we s...
Transverse Electromagnetic Modes in Aperture Waveguides Containing a Metamaterial with Extreme Anisotropy
Transverse Electromagnetic Modes Aperture Waveguides Containing Metamaterial Extreme Anisotropy
2011/8/10
We use metamaterials with extreme anisotropy to solve the fundamental problem of light transport in deep subwavelength apertures. By filling a simply connected aperture with an anisotropic mediu...
Number of usable Principal Modes in a Mode Division Multiplexing transmission for different Multi-mode fibers
Division Multiplexing transmission Multi-mode fibers
2011/5/15
after reaching a local maximum.
Enhancement of optical absorption in thin-film organic solar cells through the excitation of plasmonic modes in metallic gratings
optical absorption organic solar cells plasmonic modes metallic gratings
2010/8/10
We theoretically investigate the enhancement of optical absorption in thin-film organic solar cells in which the top transparent electrode is partially substituted by a periodic metallic grating...
Propagation of whispering gallery modes along the miniature optical fiber coils
Fiber optics components Fiber optics sensors Waveguides Optical processing devices
2010/6/9
Propagation of the whispering gallery modes along a micro-deformed miniature optical fiber coil (MOFC) is investigated. The results are applied to explain the performance of a preliminary-fabricated M...
Guided modes in slab waveguides with both double-negative and single-negative materials
guided modes dispersion characteristic double-negative left-handed materials single-negative slab waveguide
2010/4/20
A new dielectric slab waveguide with double-negative (DNG) film layer and single-negative
(SNG) cover layer is proposed. The dispersion relations of an asymmetric left-handed materials
(LHM) slab wa...
Classification of the Core Modes of Hollow-Core Photonic-Bandgap Fibers
Finite difference methods optical fi bers optical fi ber communication
2009/8/10
Using a new full-vectorial finite-difference mode solver utilizing a hexagonal Yee’s cell, we calculated the dispersion diagram of a slightly multimode (16 modes) air-core photonic-bandgap ʂ...
Observation and analysis of cladding modes in photonic crystal fiber
Observation analysis cladding modes photonic crystal fiber
2009/7/14
We report the observation of cladding modes that are the lowest-order modes having the major optical power in the air-hole region of a photonic crystal fiber. The field profiles agree well with numeri...
Distributed measurement of mode coupling in birefringent fibers with random polarization modes
white light inteferometry birefringent fibers
2009/1/6
A scanning white light interferometer is developed to measure the distributed polarization coupling (DPC) in high birefringence polarization maintaining fibers (PMFs). Traditionally, this technique re...
A Novel Active MMI Bi-Stable Laser Using Cross-Gain Saturation between Fundamental and First Order Modes
Active MMI Bi-Stable Laser Cross-Gain
2008/8/4
A novel MMI-based bi-stable laser is proposed for realizing compact size. Relatively low operation current of 100mA (8mA hysteresis), and high ON/OFF optical power-ratio of 15dB were successfully achi...
Characterizing Discrete and Distributed Scattering of Higher-Order- Modes in Large-Mode-Area Fibres
Characterizing Discrete Distributed Scattering Higher-Order- Modes Large-Mode-Area Fibres
2008/7/30
We characterize higher-order-mode content in large-mode-area fibres using spatially and spectrally resolved mode imaging. The technique is capable of distinguishing between discrete and distributed sc...
Solid low-bend-loss transmission fibers using resonant suppression of higher-order modes
transmission fibers resonant suppression higher-order modes
2008/7/30
Ring-assisted fibers suppress unwanted modes, improving the tradeoff that limits bend loss. Fabricated fibers achieve low bend loss and compatibility with standard fibers required for fiber to the hom...