The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform

Marko Loncar - One of the best experts on this subject based on the ideXlab platform.

  • Deterministic Design of wavelength scale ultra high q photonic crystal nanobeam cavities
    Optics Express, 2011
    Co-Authors: Qimin Quan, Marko Loncar
    Abstract:

    Photonic crystal nanobeam cavities are versatile platforms of interest for optical communications, optomechanics, optofluidics, cavity QED, etc. In a previous work [Appl. Phys. Lett. 96, 203102 (2010)], we proposed a Deterministic method to achieve ultrahigh Q cavities. This follow-up work provides systematic analysis and verifications of the Deterministic Design recipe and further extends the discussion to air-mode cavities. We demonstrate Designs of dielectric-mode and air-mode cavities with Q > 109, as well as dielectric-mode nanobeam cavities with both ultrahigh-Q (> 107) and ultrahigh on-resonance transmissions (T > 95%).

  • Deterministic Design of wavelength scale ultra high q photonic crystal nanobeam cavities
    arXiv: Optics, 2011
    Co-Authors: Qimin Quan, Marko Loncar
    Abstract:

    Photonic crystal nanobeam cavities are versatile platforms of interest for optical communications, optomechanics, optofluidics, cavity QED, etc. In a previous work \cite{quan10}, we proposed a Deterministic method to achieve ultrahigh \emph{Q} cavities. This follow-up work provides systematic analysis and verifications of the Deterministic Design recipe and further extends the discussion to air-mode cavities. We demonstrate Designs of dielectric-mode and air-mode cavities with $Q>10^9$, as well as cavities with both high-\emph{Q} ($>10^7$) and high on-resonance transmissions ($T>95%$).

  • photonic crystal nanobeam cavity strongly coupled to the feeding waveguide
    Applied Physics Letters, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q-factor, wavelength-scale photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>106 and on-resonance transmission T>90% are Designed. The devices, fabricated in silicon and capped with a low refractive index polymer, have experimental Q=80 000 and T=73%. This is, to the best of our knowledge, the highest transmission measured in Deterministically Designed, wavelength-scale high-Q cavities.

  • Photonic crystal nanobeam cavity strongly coupled to the feeding waveguide
    Applied Physics Letters, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q, wavelength scale mode volume photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>10^6 and on-resonance transmission T>90% are Designed. The devices fabricated in Si and capped with low-index polymer, have Q=80,000 and T=73%. This is, to the best of our knowledge, the highest transmission measured in Deterministically Designed, wavelength scale high Q cavities.

  • Deterministic Design of ultrahigh Q and small mode volume photonic crystal nanobeam cavity
    Conference on Lasers and Electro-Optics 2010, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q, subwavelength mode volume, photonic crystal nanobeam cavity, operating at the target frequency, is proposed and experimentally demonstrated. Nonlinear bistability is observed in such nanobeam cavities fabricated in Si at very low pump powers.

Qimin Quan - One of the best experts on this subject based on the ideXlab platform.

  • Deterministic Design of wavelength scale ultra high q photonic crystal nanobeam cavities
    Optics Express, 2011
    Co-Authors: Qimin Quan, Marko Loncar
    Abstract:

    Photonic crystal nanobeam cavities are versatile platforms of interest for optical communications, optomechanics, optofluidics, cavity QED, etc. In a previous work [Appl. Phys. Lett. 96, 203102 (2010)], we proposed a Deterministic method to achieve ultrahigh Q cavities. This follow-up work provides systematic analysis and verifications of the Deterministic Design recipe and further extends the discussion to air-mode cavities. We demonstrate Designs of dielectric-mode and air-mode cavities with Q > 109, as well as dielectric-mode nanobeam cavities with both ultrahigh-Q (> 107) and ultrahigh on-resonance transmissions (T > 95%).

  • Deterministic Design of wavelength scale ultra high q photonic crystal nanobeam cavities
    arXiv: Optics, 2011
    Co-Authors: Qimin Quan, Marko Loncar
    Abstract:

    Photonic crystal nanobeam cavities are versatile platforms of interest for optical communications, optomechanics, optofluidics, cavity QED, etc. In a previous work \cite{quan10}, we proposed a Deterministic method to achieve ultrahigh \emph{Q} cavities. This follow-up work provides systematic analysis and verifications of the Deterministic Design recipe and further extends the discussion to air-mode cavities. We demonstrate Designs of dielectric-mode and air-mode cavities with $Q>10^9$, as well as cavities with both high-\emph{Q} ($>10^7$) and high on-resonance transmissions ($T>95%$).

  • photonic crystal nanobeam cavity strongly coupled to the feeding waveguide
    Applied Physics Letters, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q-factor, wavelength-scale photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>106 and on-resonance transmission T>90% are Designed. The devices, fabricated in silicon and capped with a low refractive index polymer, have experimental Q=80 000 and T=73%. This is, to the best of our knowledge, the highest transmission measured in Deterministically Designed, wavelength-scale high-Q cavities.

  • Photonic crystal nanobeam cavity strongly coupled to the feeding waveguide
    Applied Physics Letters, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q, wavelength scale mode volume photonic crystal nanobeam cavity is proposed and experimentally demonstrated. Using this approach, cavities with Q>10^6 and on-resonance transmission T>90% are Designed. The devices fabricated in Si and capped with low-index polymer, have Q=80,000 and T=73%. This is, to the best of our knowledge, the highest transmission measured in Deterministically Designed, wavelength scale high Q cavities.

  • Deterministic Design of ultrahigh Q and small mode volume photonic crystal nanobeam cavity
    Conference on Lasers and Electro-Optics 2010, 2010
    Co-Authors: Qimin Quan, Parag B. Deotare, Marko Loncar
    Abstract:

    A Deterministic Design of an ultrahigh Q, subwavelength mode volume, photonic crystal nanobeam cavity, operating at the target frequency, is proposed and experimentally demonstrated. Nonlinear bistability is observed in such nanobeam cavities fabricated in Si at very low pump powers.

A. Dalalyan - One of the best experts on this subject based on the ideXlab platform.

  • Aggregation by exponential weighting, sharp PAC-Bayesian bounds and sparsity
    Machine Learning, 2008
    Co-Authors: A. Dalalyan, A. B. Tsybakov
    Abstract:

    We study the problem of aggregation under the squared loss in the model of regression with Deterministic Design. We obtain sharp PAC-Bayesian risk bounds for aggregates defined via exponential weights, under general assumptions on the distribution of errors and on the functions to aggregate. We then apply these results to derive sparsity oracle inequalities.

  • A new algorithm for estimating the effective dimension-reduction subspace
    Journal of Machine Learning Research, 2008
    Co-Authors: A. Dalalyan, Anatoly Juditsky, Vladimir Spokoiny
    Abstract:

    The statistical problem of estimating the effective dimension-reduction (EDR) subspace in the multi-index regression model with Deterministic Design and additive noise is considered. A new procedure for recovering the directions of the EDR subspace is proposed. Under mild assumptions, $\sqrt n$-consistency of the proposed procedure is proved (up to a logarithmic factor) in the case when the structural dimension is not larger than $4$. The empirical behavior of the algorithm is studied through numerical simulations.

  • Aggregation by exponential weighting, sharp oracle inequalities and sparsity
    2008
    Co-Authors: A. Dalalyan, A. B. Tsybakov
    Abstract:

    We study the problem of aggregation under the squared loss in the model of regression with Deterministic Design. We obtain sharp PAC-Bayesian risk bounds for aggregates defined via exponential weights, under general assumptions on the distribution of errors and on the functions to aggregate. We then apply these results to derive sparsity oracle inequalities.

  • A new algorithm for estimating the eectiv e dimension-reduction subspace
    2007
    Co-Authors: A. Dalalyan, Anatoly Juditsky, Vladimir Spokoiny
    Abstract:

    The statistical problem of estimating the eectiv e dimension-reduction (EDR) subspace in the multi-index regression model with Deterministic Design and additive noise is considered. A new procedure for recovering the directions of the EDR subspace is proposed. Under mild assumptions, p n-consistency of the proposed procedure is proved (up to a logarithmic factor) in the case when the structural dimension is not larger than 4.The empirical behavior of the algorithm is studied through numerical simulations.

  • COLT - Aggregation by exponential weighting and sharp oracle inequalities
    Learning Theory, 1
    Co-Authors: A. Dalalyan, A. B. Tsybakov
    Abstract:

    In the present paper, we study the problem of aggregation under the squared loss in the model of regression with Deterministic Design. We obtain sharp oracle inequalities for convex aggregates defined via exponential weights, under general assumptions on the distribution of errors and on the functions to aggregate. We show how these results can be applied to derive a sparsity oracle inequality.

A. B. Tsybakov - One of the best experts on this subject based on the ideXlab platform.

Parag B. Deotare - One of the best experts on this subject based on the ideXlab platform.