scholarly journals A polarization encoded photon-to-spin interface

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
K. C. Chen ◽  
E. Bersin ◽  
D. Englund
Keyword(s):  
Photonic Crystal ◽  
Solid State ◽  
Theoretical Analysis ◽  
Spin State ◽  
Numerical Models ◽  
Extinction Ratio ◽  
Integrated Photonics ◽  
High Fidelity ◽  
Trade Off ◽  
Polarization Extinction Ratio

AbstractWe propose an integrated photonics device for mapping qubits encoded in the polarization of a photon onto the spin state of a solid-state defect coupled to a photonic crystal cavity: a “polarization-encoded photon-to-spin interface” (PEPSI). We perform a theoretical analysis of the state fidelity’s dependence on the device’s polarization extinction ratio and atom–cavity cooperativity. Furthermore, we explore the rate-fidelity trade-off through analytical and numerical models. In simulation, we show that our design enables efficient, high fidelity photon-to-spin mapping.

scholarly journals Compact Photonic Crystal Polarization Beam Splitter Based on the Self-Collimation Effect

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 198
Author(s):  
Geyu Tang ◽  
Huamao Huang ◽  
Yuqi Liu ◽  
Hong Wang
Keyword(s):  
Optical Communications ◽  
Beam Splitter ◽  
Extinction Ratio ◽  
Polarized Light ◽  
The Self ◽  
Polarization Beam Splitter ◽  
Optical Interconnection ◽  
Beam Splitting ◽  
Beam Splitters ◽  
Polarization Extinction Ratio

We propose a new compact polarization beam splitter based on the self-collimation effect of two-dimensional photonic crystals and photonic bandgap characteristics. The device is composed of a rectangular air holes-based polarization beam splitting structure and circular air holes-based self-collimating structure. By inserting the polarization beam splitting structure into the self-collimating structure, the TE and TM polarized lights are orthogonally separated at their junction. When the number of rows in the hypotenuse of the inserted rectangular holes is 5, the transmittance of TE polarized light at 1550 nm is 95.4% and the corresponding polarization extinction ratio is 23 dB; on the other hand, the transmittance of TM polarized light is 88.5% and the corresponding polarization extinction ratio is 37 dB. For TE and TM polarized lights covering a 100 nm bandwidth, the TE and TM polarization extinction ratios are higher than 18 dB and 30 dB, respectively. Compared with the previous polarization beam splitters, our structure is simple, the size is small, and the extinction ratio is high, which meets the needs of modern optical communications, optical interconnection, and optical integrated systems.

Theoretical analysis of the solid-state terahertz spectrum of the high explosive RDX

2008 ◽  
Vol 463 (1-3) ◽  
pp. 84-89 ◽  
Author(s):  
Damian G. Allis ◽  
J. Axel Zeitler ◽  
Philip F. Taday ◽  
Timothy M. Korter
Keyword(s):  
Solid State ◽  
Theoretical Analysis ◽  
High Explosive ◽  
Terahertz Spectrum

High fidelity moving Z-score based controlled breakdown fabrication of solid-state nanopore

2019 ◽  
Vol 30 (9) ◽  
pp. 095502 ◽  
Author(s):  
Kamyar Akbari Roshan ◽  
Zifan Tang ◽  
Weihua Guan
Keyword(s):  
Solid State ◽  
High Fidelity ◽  
Z Score

scholarly journals Improving Performance and Reliability of Solid State Disk by Exploiting the Trade-Off between Heterogeneous

2017 ◽  
Vol 9 (4) ◽  
pp. 277-280
Author(s):  
Ahmed Izzat Alsalibi ◽  
◽  
Putra Sumari ◽  
Moh’d Khaled Yousef Shambour
Keyword(s):  
Solid State ◽  
Trade Off ◽  
Solid State Disk

scholarly journals Characterization of the unsteady aerodynamic response of a floating offshore wind turbine

2020 ◽  
Author(s):  
Simone Mancini ◽  
Koen Boorsma ◽  
Marco Caboni ◽  
Marion Cormier ◽  
Thorsten Lutz ◽  
...  
Keyword(s):  
Numerical Models ◽  
Aerodynamic Performance ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
High Fidelity ◽  
Aerodynamic Damping ◽  
Unsteady Aerodynamic ◽  
Future Work ◽  
Good Agreement

Abstract. The disruptive potential of floating wind turbines has attracted the interest of both industry and scientific community. Lacking a rigid foundation, such machines are subject to large displacements whose impact on the aerodynamic performance is not yet fully acknowledged. In this work, the unsteady aerodynamic response to an harmonic surge motion of a scaled version of the DTU10MW turbine is investigated in detail. The imposed displacements have been chosen representative of typical platform motions. The results of different numerical models are validated against high fidelity wind tunnel tests specifically focused on the aerodynamics. Also a linear analytical model, relying on the quasi-steady assumption, is presented as a theoretical reference. The unsteady responses are shown to be dominated by the first surge harmonic and a frequency domain characterization, mostly focused on the thrust oscillation, is conducted involving aerodynamic damping and mass parameters. A very good agreement among codes, experiments and quasi-steady theory has been found clarifying some literature doubts. A convenient way to describe the unsteady results in non-dimensional form is proposed, hopefully serving as reference for future work.

A novel measurement scheme of the polarization extinction ratio

2015 ◽  
Author(s):  
Huihui Ma ◽  
Xueguang Yuan ◽  
Yangan Zhang ◽  
Yan Hong ◽  
Limeng Wang ◽  
...  
Keyword(s):  
Extinction Ratio ◽  
Measurement Scheme ◽  
Polarization Extinction Ratio

Concave Rectangle Photonic Crystal Ring Resonator for Ultra-Fast All-Optical Modulation

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Sana Rebhi ◽  
Radhouene Massoudi ◽  
Monia Najjar
Keyword(s):  
Photonic Crystal ◽  
Insertion Loss ◽  
Ring Resonator ◽  
Extinction Ratio ◽  
Input Power ◽  
Light Signal ◽  
Optical Modulator ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
Photonic Crystal Ring Resonator

AbstractIn this paper, an ultra-fast all-optical modulator, based on a new shape of nonlinear photonic crystal ring resonator, is designed and studied. Numerical methods such as plane wave expansion (PWE) and finite-difference time domain (FDTD) are used to perform simulations. The modulation technique consists of carrier light controlling by means of input light signal and Kerr effect. The investigation of extinction ratio and insertion loss within the carrier input power shows that the choice of 0.7 W is the optimal value of that power to ensure the tradeoff between both characteristics. The suggested modulator demonstrates an excellent extinction ratio about 20.8018, a very low insertion loss of −13.98 and a short switching time about 13.4 ps. According to the obtained results, the modulator can be considered as an ultra-fast and ultra-compact optical component.

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