搜索结果: 1-15 共查到“光学工程 periodic”相关记录17条 . 查询时间(0.05 秒)
Optimization of non-periodic plasmonic light-trapping layers for thin-film solar cells
non-periodic plasmonic light-trapping layers
2015/8/7
Non-periodic arrangements of nanoscale light scatterers allow for the realization of extremely effective broadband light-trapping layers for solar cells. However, their optimization is challenging giv...
Studies of Optical Properties of Symmetrical Quasi-Periodic Photonic Crystals
Symmetrical Quasi-Periodic Photonic Crystals Hybrid Photonic Crystals Photonic Band Gap
2013/1/30
Using the transfer matrix method approach (TMM), the present paper attempts to determine the optical properties of quasi-periodic symmetric one-dimensional photonic systems. In addition, it studies hy...
High-Effi ciency Amorphous Silicon Solar Cell on a Periodic Nanocone Back Refl ector
Amorphous Silicon Solar Cell Periodic Nanocone
2015/8/7
hin-fi lm silicon solar cells, including hydrogenated amorphous silicon (a-Si:H) single-junction and amorphous/microcrystal line silicon (a-Si:H/ μ c-Si:H) tandem-junction solar cells, are promi...
S4:A free electromagnetic solver for layered periodic structures
Computational electromagnetics Maxwell solver Fourier modal method
2015/8/7
We describe S4, a free implementation of the Fourier modal method (FMM), which has also been commonly referred to as rigorous coupled wave analysis (RCWA), for simulating electromagnetic propagation t...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2015/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
Properties of the angular gap in one-dimensional periodic structures containing left-handed metamaterials
left-handed metamaterials photonic gaps optical bistability
2011/5/5
Wave propagation is investigated in one-dimensional periodic structures containing layers of
left-handed metamaterials. For a special choice of parameters, an angular gap appears due to total
intern...
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
2016/12/2
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...
All-Optical Carrier Recovery with Periodic Optical Filtering for Wavelength Reuse in RSOA-based Colorless Optical Network Units in Full-Duplex 10Gbps WDM-PONs
Fiber optics communications Modulation All-optical devices
2015/6/10
Optically assisted downstream cancellation for wavelength reuse in WDM-PONs is demonstrated, allowing downstream extinction ratios up to 9dB for symmetrical full-duplex data transmission at 10Gbps wit...
Suppression of Inter-Channel Nonlinearities in WDM Coherent PDM- QPSK Systems Using Periodic-Group-Delay Dispersion Compensators
Inter-Channel Nonlinearities WDM Coherent PDM- QPSK Systems Periodic-Group-Delay
2015/7/17
We show that periodic-group-delay dispersion compensators can significantly suppress inter-channel nonlinearities in a WDM coherent polarization-division-multiplexed quardrature-phase-shift-keying sys...
Wavelength Conversion Devices Using Periodic Domain-Inverted Structures and Their Applications to Photonic Networks
Nonlinear optics Wavelength conversion Optical switching
2009/6/8
Recent progress in waveguide-type quasi-phase matched (QPM) nonlinear-optic wavelength conversion devices is reviewed with emphasis on research work of the author's group. A new technique for forming ...
Interferential polychromatic filters based on the quasi-periodic one-dimensional generalized multilayer Thue – Morse structures
photonic crystals periodic quasi-periodic
2011/5/10
In this paper, a new type of optical filter using photonic band gap materials has been proposed. The optical filter was obtained by a combination of periodic H(LH)J and generalized Thue – Morse (GTM) ...
Microwave properties of the generalized Fibonacci quasi-periodic multilayered photonic band gap structure
generalized Fibonacci multilayer photonic crystal
2011/5/6
The transmission properties in microwave domains (10 GHz to 40 GHz) of generalized dielectric Fibonacci multilayer generated by the rule Sl+1 = SmlSnl–1: with a pair of positive integers m and n were ...
Channelized Dispersion-Compensating Grating by Periodic Continuous Phase and Amplitude Modulatio
Channelized Dispersion-Compensating Grating Periodic Continuous Phase Amplitude Modulatio
2015/8/4
A novel phase and amplitude modulation scheme for channelized dispersion compensating gratings is presented.Measurement data from fabricated gratings show low group-delay ripple and low insertion-loss...
Guided modes supported by plasmonic films with a periodic arrangement of subwavelength slits
periodic arrangement subwavelength slits
2015/8/11
We calculate the guided band diagram of a metallic film with a one-dimensional periodic arrangement of cut-through subwavelength slits. We find that this system supports two distinct types...
Multiple omnidirectional reflection bands from half-wave layered periodic structures
thin films multilayers filters bandgaps 1D photonic crystals
2011/4/26
The paper is concerned with one-dimensional multilayers that exhibit multiple bands of omnidirectional reflection, which means complete reflection regardless of incidence angle and polarization. The t...