Slow light

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Slow light is the propagation of an optical pulse or other modulation of an optical carrier at a very low group velocity. (Wikipedia.org)






Conferences related to Slow light

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2021 IEEE Photovoltaic Specialists Conference (PVSC)

Photovoltaic materials, devices, systems and related science and technology


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

All areas of ionizing radiation detection - detectors, signal processing, analysis of results, PET development, PET results, medical imaging using ionizing radiation


2020 Optical Fiber Communications Conference and Exhibition (OFC)

The Optical Fiber Communication Conference and Exhibition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For over 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.OFC attracts the biggest names in the field, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends and technology advances affecting the industry. From technical presentations to the latest market trends and predictions, OFC is a one-stop-shop.


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Periodicals related to Slow light

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Circuits and Systems for Video Technology, IEEE Transactions on

Video A/D and D/A, display technology, image analysis and processing, video signal characterization and representation, video compression techniques and signal processing, multidimensional filters and transforms, analog video signal processing, neural networks for video applications, nonlinear video signal processing, video storage and retrieval, computer vision, packet video, high-speed real-time circuits, VLSI architecture and implementation for video technology, multiprocessor systems--hardware and software-- ...


Circuits and Systems Magazine, IEEE


Communications, IEEE Transactions on

Telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation, including radio; wire; aerial, underground, coaxial, and submarine cables; waveguides, communication satellites, and lasers; in marine, aeronautical, space and fixed station services; repeaters, radio relaying, signal storage, and regeneration; telecommunication error detection and correction; multiplexing and carrier techniques; communication switching systems; data communications; and communication theory. In addition to the above, ...


Computer

Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed technical content that covers all aspects of computer science, computer engineering, technology, and applications. Computer is a resource that practitioners, researchers, and managers can rely on to provide timely information about current research developments, trends, best practices, and changes in the profession.


Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on

Methods, algorithms, and human-machine interfaces for physical and logical design, including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, and documentation of integrated-circuit and systems designs of all complexities. Practical applications of aids resulting in producible analog, digital, optical, or microwave integrated circuits are emphasized.


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Most published Xplore authors for Slow light

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Xplore Articles related to Slow light

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Dispersionless Slow Light in Fiber Bragg Gratings with Active Materials

2010 Symposium on Photonics and Optoelectronics, 2010

In this paper, an atomic system is suggested to be embedded in the fiber Bragg gratings (FBG) to reduce the group velocity and to eliminate the dispersion of slow light. We demonstrate numerically that the pulse can be transmitted at the group velocity 0.147c dispersionlessly in the FBG, compared with 0.193c and 56% of FWHM broadening without the atomic system.


Optical propagation with slow and negative group velocity in Rb vapor

Quantum Electronics and Laser Science Conference (QELS 2000). Technical Digest. Postconference Edition. TOPS Vol.40 (IEEE Cat. No.00CH37089), 2000

Summary form only given. The propagation of light in a dispersive medium is characterized by the group velocity /spl nu//sub g/=c(n+/spl nu//sup dn//d/spl nu/)/sup .1/ where n is the refractive index and /spl nu/ the optical frequency. Depending on the sign and magnitude of /sup dn//d/spl nu/ in the medium, the group velocity can be positive, infinite or negative. The ...


Wideband SBS slow light in a single mode fiber using a phase-modulated pump

2007 Quantum Electronics and Laser Science Conference, 2007

Using a 10-Gb/s PRBS phase-modulated pump, we achieve SBS slow light of 10-GHz, 26.6-ps pulses by 10.6 ps. The correlation between the pulse width and the amount of phase modulation is reported.


Research of nano-material doped fiber in SBS slow light system

2009 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2009

According to the development of slow light and nanotechnology, a novel optical fiber doped with nano material as InP is manufactured and introduced into the SBS slow light system, serving as the nonlinear medium of SBS process. Numerical simulations and experimental discussions are performed to validate our method. The results show a considerable time delay of ~738 ps and an ...


Thermally Modulated Slow Light in Magnetic Fluid Photonic Crystal

IEEE Photonics Technology Letters, 2015

Magnetic fluid is a new type of optical functional material. When it is made as a film, a hexagonal order structure can be formed under an external magnetic field. This novel magnetic-field dependent structure may be regarded as a kind of magnetic fluid photonic crystal. The slow light property in the magnetic fluid photonic crystal was studied in this letter. ...


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Educational Resources on Slow light

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IEEE-USA E-Books

  • Dispersionless Slow Light in Fiber Bragg Gratings with Active Materials

    In this paper, an atomic system is suggested to be embedded in the fiber Bragg gratings (FBG) to reduce the group velocity and to eliminate the dispersion of slow light. We demonstrate numerically that the pulse can be transmitted at the group velocity 0.147c dispersionlessly in the FBG, compared with 0.193c and 56% of FWHM broadening without the atomic system.

  • Optical propagation with slow and negative group velocity in Rb vapor

    Summary form only given. The propagation of light in a dispersive medium is characterized by the group velocity /spl nu//sub g/=c(n+/spl nu//sup dn//d/spl nu/)/sup .1/ where n is the refractive index and /spl nu/ the optical frequency. Depending on the sign and magnitude of /sup dn//d/spl nu/ in the medium, the group velocity can be positive, infinite or negative. The group velocity corresponds to the speed of the propagation of the maximum of an optical pulse travelling into the medium. This remains true whether the dispersion in the medium is normal (/sup dn//d/spl nu/>0) or anomalous (/sup dn//d/spl nu/<0). It has been demonstrated that coherently prepared atomic systems can exhibit steep dispersion leading to small absolute values of the group velocity ("slow light"). In recent work, we have demonstrated that narrow resonances arising from the coherent interaction of two optical fields with a closed atomic transition between two degenerate levels may correspond to a steep anomalous dispersion and thus to slow and negative group velocity. We report on the experimental study of the propagation of an amplitude modulated wave in a medium presenting negative group velocity.

  • Wideband SBS slow light in a single mode fiber using a phase-modulated pump

    Using a 10-Gb/s PRBS phase-modulated pump, we achieve SBS slow light of 10-GHz, 26.6-ps pulses by 10.6 ps. The correlation between the pulse width and the amount of phase modulation is reported.

  • Research of nano-material doped fiber in SBS slow light system

    According to the development of slow light and nanotechnology, a novel optical fiber doped with nano material as InP is manufactured and introduced into the SBS slow light system, serving as the nonlinear medium of SBS process. Numerical simulations and experimental discussions are performed to validate our method. The results show a considerable time delay of ~738 ps and an amplification of the optical light can be achieved through this novel optical fiber.

  • Thermally Modulated Slow Light in Magnetic Fluid Photonic Crystal

    Magnetic fluid is a new type of optical functional material. When it is made as a film, a hexagonal order structure can be formed under an external magnetic field. This novel magnetic-field dependent structure may be regarded as a kind of magnetic fluid photonic crystal. The slow light property in the magnetic fluid photonic crystal was studied in this letter. It was pointed that the geometry parameters of the structure could be tuned by changing the applied temperature. In addition, photonic bandgap and group velocity as a function of temperature were simulated. The results showed that the upper and lower normalized frequency of the photonic bandgap would both shift to higher frequencies, and the maximal group velocity <;0.25 c was obtained, which could be thermally tuned in a large range. The working frequency corresponding to the maximal group velocity would change from 0.2063 to 0.4312 (a/λ) when the external temperature was increased from 18 °C to 48 °C. These results fully proved that the magnetic fluid photonic crystal, as a type of thermally modulated photonic crystal, could be used in the field of optical sensors. It also provided a new idea for generating slow light in colloid photonic crystal waveguide.

  • All-optical delay of images using slow light

    Two-dimensional images are delayed in a cesium vapor cell. The transverse phase and amplitude profiles of the images are shown to be preserved, even at very low light levels.

  • Grating Induced Transparency (GIT) and the Dark mode in optical waveguides

    A new type of optical mode that possesses a formal analogy to the dark atomic state involved in electromagnetically induced transparency. It displays a transparency and slow light behavior free from the bandwidth-delay product constraint.

  • Controllable group delay in a θ-shaped microfiber resonator with coupled-resonator-induced transparency

    The control of Light velocity is theoretically and experimentally demonstrated in a θ-shaped microfiber resonator with coupled-resonator-induced transparency. By adjusting the structure parameters, group delays from -60ps to 200ps are achieved in the all-fiber resonator.

  • Numerical Analysis of Bandwidth-Limited Slow Light in Fiber Graings

    Possibility of bandwidth-limited slow light in superstructure fiber gratings is analyzed numerically, and the transmission spectra and the group delay spectra are given. Intensity modulated Gauss pulse with FWHM of 1.5 ns can be delayed about 1.2 ns in superstructure fiber grating with modest pulse distortion.

  • Group index engineering in silicon corrugated waveguides

    We present experimental measurements of the group index in tailored silicon corrugated waveguides. Nearly constant group index as high as ng=14 ± 0.5 in a 13 nm range was measured in a 50 μm long waveguide.



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