Ultrastable frequency reference at 1.56 μm using a CO molecular overtone transition with the noise immune cavity-enhanced optical heterodyne molecular spectroscopy method

Kavli Affiliate: Robert Byer | First 5 Authors: Shailendar Saraf, Paul Berceau, Alberto Stochino, Robert Byer, John Lipa | Summary: We report on an ultrastable molecular clock based on the interrogation of the 3{nu} rotational-vibrational combination band at 1563nm of carbon monoxide 12C16O. The laser stabilization scheme is based on frequency modulation (FM) saturation spectroscopy […]


Continue.. Ultrastable frequency reference at 1.56 μm using a CO molecular overtone transition with the noise immune cavity-enhanced optical heterodyne molecular spectroscopy method

Efficient and accurate modeling of multi-wavelength propagation in SOAs: a generalized coupled-mode approach

Kavli Affiliate: Larry Coldren | First 5 Authors: Cristian Antonelli, Antonio Mecozzi, Wangzhe Li, Larry Coldren, | Summary: We present a model for multi-wavelength mixing in semiconductor optical amplifiers (SOAs) based on coupled-mode equations. The proposed model applies to all kinds of SOA structures, takes into account the longitudinal dependence of carrier density caused by […]


Continue.. Efficient and accurate modeling of multi-wavelength propagation in SOAs: a generalized coupled-mode approach

Closing the proximity gap in a metallic Josephson junction between three superconductors

Kavli Affiliate: Yu V. Nazarov | First 5 Authors: C. Padurariu, T. Jonckheere, J. Rech, R. Mélin, D. Feinberg | Summary: We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multi-terminal junction may cross the Fermi level. We reveal that for a quasi-continuous metallic […]


Continue.. Closing the proximity gap in a metallic Josephson junction between three superconductors

Thermal Maps of Gases in Heterogeneous Reactions

Kavli Affiliate: Omar M. Yaghi | First 5 Authors: Nanette N. Jarenwattananon, Stefan Gloeggler, Trenton Otto, Arek Melkonian, William Morris | Summary: Over 85% of all chemical industry products are made using catalysts, with the overwhelming majority of these employing heterogeneous catalysts functioning at the gas-solid interface. Consequently, optimizing catalytic reactor design attracts much effort. […]


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Dispersion Distance and the Matter Distribution of the Universe in Dispersion Space

Kavli Affiliate: Kiyoshi Wesley Masui | First 5 Authors: Kiyoshi Wesley Masui, Kris Sigurdson, , , | Summary: We propose that "standard pings", brief broadband radio impulses, can be used to study the three-dimensional clustering of matter in the Universe even in the absence of redshift information. The dispersion of radio waves as they travel […]


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Percolation lithography: Tuning and freezing disorder in 3D photonic crystals using partial wetting and drying

Kavli Affiliate: Anna V. Shneidman | First 5 Authors: Ian B. Burgess, Navid Abedzadeh, Theresa M. Kay, Anna V. Shneidman, Derek J. Cranshaw | Summary: Although complex, hierarchical nanoscale geometries with tailored degrees of disorder are commonly found in biological systems, few simple self-assembly routes to fabricating synthetic analogues have been identified. We present two […]


Continue.. Percolation lithography: Tuning and freezing disorder in 3D photonic crystals using partial wetting and drying

Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond

Kavli Affiliate: Viatcheslav V. Dobrovitski | First 5 Authors: Demitry Farfurnik, Andrey Jarmola, Linh M. Pham, Zhi-Hui Wang, Viatcheslav V. Dobrovitski | Summary: We demonstrate significant improvements of the spin coherence time of a dense ensemble of nitrogen-vacancy (NV) centers in diamond through optimized dynamical decoupling (DD). Cooling the sample down to $77$ K suppresses […]


Continue.. Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond

Quantum dot nonlinearity through cavity-enhanced feedback with a charge memory

Kavli Affiliate: Larry Coldren | First 5 Authors: Morten P. Bakker, Thomas Ruytenberg, Wolfgang Loffler, Ajit V. Barve, Larry Coldren | Summary: In an oxide apertured quantum dot (QD) micropillar cavity-QED system, we found strong QD hysteresis effects and lineshape modifications even at very low intensities corresponding to less than 0.001 intracavity photons. We attribute […]


Continue.. Quantum dot nonlinearity through cavity-enhanced feedback with a charge memory