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Cleaning technique boosts electronic, photonic prospects of aluminum nitride（图）
清洗技术 氮化铝 光电子学
2023/5/19
A group of researchers led by Cornell is unlocking the full potential of aluminum nitride – an important material for the advancement of electronics and photonics – thanks to the development of a surf...
We demonstrate for the first time, to best of our knowledge, that by engineering the states of a system of cavities it is possible to control photon transitions using non-adiabatic refractive index tu...
Photonic Crystal Based Direct and Inverse Heterostructures by Colloidal Self-Assembly
Photonic Crystal Heterostructure Self-Assembly Sol-Gel Inverse Photonic Crystal Dual Stop Bands
2013/1/30
Photonic crystal heterostructures containing two materials and/or two lattice constants are synthesized using the colloids of polystyrene and polymethyl methacrylate by a self-assembling technique. Th...
Opal-Based Photonic Crystal Heterostructures
Sol-Gel Colloidal Crystals Optical Properties Heterostructures
2013/1/30
The fabrication of photonic crystal heterostructures is important for the applications in the fields of integrated photonic crystal chips and multi-frequency optical Bragg filters or mirrors; here we ...
THz-Wave Generation from GaP THz Photonic Crystal Waveguides under Difference-Frequency Mixing
THz-Wave Generation Photonic Crystal Waveguide Nonlinear Optical Effect
2013/1/30
GaP terahertz (THz) two-dimensional (2D) photonic crystal (PC) waveguides with line defects were fabricated using inductively-coupled plasma reactive-ion etching (ICP-RIE) in Ar/Cl2 gas chemistries. T...
Soft Glass Based Large Mode Area Photonic Bandgap Fibre for Mid-Infrared Applications
Microstructured fibres Fibre design fabrication
2015/5/22
An all-solid LMA Bragg fibre (mode area exceeding 1100μm 2 ) is presented for mid-infrared applications, based on a new design strategy that induces large differential loss between fundamental and hig...
Microwave Photonic Filters with a Directly Generated Gaussian-shaped Optical Frequency Comb
Microwave Photonic Filters Directly Generated Gaussian-shaped Optical Frequency Comb
2015/5/21
Using electro-optic modulators, we generate a 41-line 10-GHz spaced Gaussian-shaped optical comb. We use this comb to demonstrate apodized microwave photonic filters with greater than 43-dB sidelobe s...
Highly efficient and widely wavelength-tunable anti-Stokes signal conversion in the fundamental mode of photonic crystal fibe
Highly efficient wavelength-tunable anti-Stokes signal conversion undamental photonic crystal fibe
2015/5/20
Anti-Stokes signals from 645 to 543nm are generated in the fundamental mode. The power ratio of signal at 543 nm to residual pump at 840 nm is 22.6:1, the conversion efficiency P as /P p0 being above ...
CMOS-Compatible Scalable Photonic Switch Architecture Using 3D-Integrated Deposited Silicon Materials for High-Performance Data Center Networks
CMOS-Compatible Scalable Photonic Switch Architecture 3D-Integrated Deposited Silicon Materials High-Performance Data Center Networks
2015/5/20
We propose a novel fully-integrated scalable photonic switch architecture for data center networks, sustaining nonblocking 256×256 port size with nanosecond-scale switching times,interconnecting 2,560...
Photonic Synthesis of Triangular-Shaped Pulses and Its Tunability Utilizing Frequency to Time Mapping
Triangular-Shaped Pulses Utilizing Frequency Photonic Synthesis
2015/5/15
A synthesis scheme to generate microwave triangular-shaped pulses based on spectral shaping and frequency-to-time mapping is proposed. Triangular-shaped signals with periods of 0.2ns, 0.4ns, 1.6ns and...
Ultralow-Power High-Performance Si Photonic Transmitter
Modulators Optical interconnects Subsystems integration techniques
2015/6/5
We report a 320fJ/bit transmitter made of a Si microring modulator flip-chip bonded to a CMOS driver. The transmitter consumes only 1.6mW power, and exhibits a wide open eye with extinction ratio >7dB...
First Experimental Bit-Error-Rate Validation of 12.5-Gb/s Silicon Modulator Enabling Photonic Networks-on-Chip
Optoelectronics Modulators
2015/6/5
Error-free 12.5-Gb/s operation of silicon microring resonator electro-optic modulator is experimentally demonstrated, with bit-error-rate and power penalty performance metrics measured using system-le...
Harmonic Distortion in Slow Light SOA based Microwave Photonic Phase Shifters
Fiber optics communications Fiber optics links subsystems
2015/6/4
We present a theoretical and experimental evaluation of any general order harmonic distortion in a SFL phase shifter based on CPO in a SOA and propose different optical filtering implementations for d...
Optoelectronic Generation of Millimeter-Wave White-Light at W-band with Very-Fast Sweeping Rate by Use of High-Power and Broadband Photonic Emitters
Photodiodes Radio frequency photonics
2015/6/4
By using photonic emitters and fast-scanning lasers at 1.55μm wavelengths, we generated very-flat spectra at 75-110GHz with a thirty times faster scanning-rate (35GHz/ms), much lower driving-voltage, ...
On-Chip All-Optical Switching and Memory by Silicon Photonic Crystal Nanocavities
On-Chip All-Optical Switching Silicon Photonic Crystal Nanocavities
2009/5/19
We review our recent studies on all-optical switching and memory operations based on thermo-optic and carrier-plasma nonlinearities both induced by two-photon absorption in silicon photonic crystal na...