Dr. Mark Bashkansky Profile

Dr. Mark Bashkansky

Research Physicist at US Naval Research Lab

SPIE Involvement:

Author

Publications (32)

Proceedings Article | 25 February 2020 Paper

Decoherence and dynamics in continuous 3D-cooled atom interferometry

Adam Black, Jonathan Kwolek, Charles Fancher, Mark Bashkansky

Proceedings Volume 11296, 1129607 (2020) https://doi.org/10.1117/12.2552540

KEYWORDS: Interferometers, Raman spectroscopy, Luminescence, Doppler effect, 3D metrology, Sensors, Clocks, Interferometry, Light scattering

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Proceedings Article | 13 May 2019 Paper

Experimental demonstration of a passive temperature stabilized quantum memory for storage of polarization qubits in a cold atomic ensemble

Thomas Akin, John Reintjes, Michal Piotrowicz, Adam Black, Alex Kuzmich, Mark Bashkansky

Proceedings Volume 10984, 1098405 (2019) https://doi.org/10.1117/12.2518484

KEYWORDS: Polarization, Crystals, Quantum communications, Calcite, Quantum memory, Photons, Temperature metrology, Interferometers, Phase measurement, Interferometry

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Interferometric stability of polarization-entangled photons in quantum repeaters for long time intervals is an important capability for future scalable quantum networks linked over distances greater than hundreds of kilometers. A quantum memory node is a necessary component of the quantum repeater, where entanglement is prepared and swapped to extend entangled states from remote to distant nodes. Room temperature fluctuations can have significant effects on phase stability of the polarization states stored in the quantum memory. Although common-path stabilization in a quantum memory has been demonstrated, passive stabilization to room temperature variations has not been realized. Our approach to the quantum memory uses a single collective excitation encoded in two separate spatial modes in a cold ensemble of rubidium atoms. The two spatial modes are combined into a single path using the birefringence of two calcite crystals. However, normal lab temperature changes introduces a phase shift between the ordinary and extraordinary pathways on the order of 2π. We demonstrate passive temperature stabilization by alignment of the ordinary path in one crystal to the extraordinary path in the second crystal and vice versa. We show a phase stability on the order of ten hours by homodyne detection of classical light modes exiting the interferometer. We corroborate the phase stability of the quantum memory with a correlation measurement between polarization states of a signal photon generated at the formation of the collective atomic excitation and a retrieved idler photon during the destruction of the atomic excitation. We measure a Bell-CHSH parameter for both the unstable configuration and for the stable configuration. For an unstable calcite crystal configuration, we do not measure a violation of the Bell-CHSH inequality¹ (S≤2) with S = 1.42 ± 0.087. For the stable calcite crystal configuration, we measure a violation of Bell-CHSH inequality (S>2) with S = 2.48±0.099.

Proceedings Article | 13 May 2019 Paper

Spatial resolution in entangled ghost imaging

J. Reintjes, Mark Bashkansky

Proceedings Volume 10984, 109840H (2019) https://doi.org/10.1117/12.2518448

KEYWORDS: Crystals, Phase matching, Spatial resolution, Sensors, Point spread functions, Solids, Photons, Spatial frequencies, Signal detection, Image resolution

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Proceedings Article | 14 May 2018 Paper

Mitigating pointing requirements and turbulence effects in free-space quantum key distribution

Mark Bashkansky, William Rabinovich, Rita Mahon, Mike Ferraro, Peter Goetz, J. Reintjes

Proceedings Volume 10660, 1066008 (2018) https://doi.org/10.1117/12.2304456

KEYWORDS: Photons, Quantum key distribution, Turbulence, Polarization, Receivers, Satellites, Beam splitters, Signal detection, Modulation, Single photon

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Proceedings Article | 15 February 2018 Presentation + Paper

A BB84 free space quantum key distribution link implemented with modulating retro-reflectors

William Rabinovich, Rita Mahon, Mike Ferraro, Peter Goetz, Mark Bashkansky, Rachel Freeman, James Murphy, John Reintjes

Proceedings Volume 10524, 105240N (2018) https://doi.org/10.1117/12.2297637

KEYWORDS: Modulators, Quantum key distribution, Modulation, Retroreflectors, Free space, Signal attenuation, Polarization, Beam splitters, Quantum wells, Free space optics

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Proceedings Article | 24 February 2017 Presentation + Paper

A scintillation playback system for quantum links

William Rabinovich, Rita Mahon, Mark Bashkansky, Rachel Freeman, John Reintjes

Proceedings Volume 10096, 1009604 (2017) https://doi.org/10.1117/12.2250619

KEYWORDS: Free space optics, Scintillation, Quantum key distribution, Atmospheric propagation, Quantum communications, Free space, Atmospheric optics, Turbulence, Telecommunications, Cryptography, Sensors, Transmitters, Receivers, Polarization, Fiber optics

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Proceedings Article | 19 May 2016 Paper

A proposed optical test for Popper's challenge to quantum mechanics

J. Reintjes, Mark Bashkansky

Proceedings Volume 9873, 987309 (2016) https://doi.org/10.1117/12.2222307

KEYWORDS: Image resolution, Signal detection, Sensors, Diffraction, Particles, Quantum mechanics, Quantum optics, Solids, Crystals, Optical testing

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Proceedings Article | 19 May 2016 Paper

Higher-order spontaneous parametric down-conversion with back-propagating idler using a submicron poled KTP waveguide

Mark Bashkansky, Marcel Pruessner, Igor Vurgaftman, Mijin Kim, J. Reintjes

Proceedings Volume 9873, 987303 (2016) https://doi.org/10.1117/12.2222303

KEYWORDS: Phase matching, Waveguides, Crystals, Ferroelectric materials, Nonlinear crystals, Quantum optics, Single mode fibers, Photons, Metals, Polarization

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Proceedings Article | 21 May 2015 Paper

Considerations on collapse of the wavefunction

J. Reintjes, Mark Bashkansky

Proceedings Volume 9500, 95000U (2015) https://doi.org/10.1117/12.2176377

KEYWORDS: Signal detection, Sensors, Diffraction, Solids, Crystals, Point spread functions, Image sensors, Particles, Photodetectors, Nonlinear optics

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Proceedings Article | 22 May 2014 Paper

Characterization of photons generated in spontaneous parametric down-conversion

Mark Bashkansky, Igor Vurgaftman, J. Reintjes

Proceedings Volume 9123, 91230G (2014) https://doi.org/10.1117/12.2050879

KEYWORDS: Signal detection, Sensors, Photons, Single photon, Correlation function, Single photon detectors, Beam splitters, Quantum optics, Signal generators, Solids

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Proceedings Article | 29 May 2013 Paper

Compact, fiber-based, fast-light enhanced optical gyroscope

Caleb Christensen, Anton Zavriyev, Mark Bashkansky, A. Craig Beal

Proceedings Volume 8722, 87220J (2013) https://doi.org/10.1117/12.2015892

KEYWORDS: Optical fibers, Gyroscopes, Light scattering, Laser scattering, Scattering, Fiber lasers, Fiber optic gyroscopes, Polarization, Phase modulation, Spectrum analysis

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Proceedings Article | 29 March 2013 Paper

Optimal detuning for writing warm-atomic-vapor quantum memory in the presence of collisional fluorescence and four-wave mixing

Igor Vurgaftman, Mark Bashkansky

Proceedings Volume 8635, 86350Q (2013) https://doi.org/10.1117/12.2004239

KEYWORDS: Signal to noise ratio, Raman spectroscopy, Chemical species, Photons, Neon, Quantum memory, Luminescence, Four wave mixing, Interference (communication), Avalanche photodetectors

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Proceedings Article | 8 May 2012 Paper

Generating and storing nonclassical correlations in a warm Rb vapor cell with buffer gas

Mark Bashkansky, Fredrik Fatemi, Igor Vurgaftman

Proceedings Volume 8400, 840013 (2012) https://doi.org/10.1117/12.918306

KEYWORDS: Photons, Quantum memory, Luminescence, Neon, Rubidium, Fabry–Perot interferometers, Avalanche photodetectors, Optical filters, Chemical species, Raman scattering

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Proceedings Article | 16 February 2012 Paper

Quantum memory in warm Rb vapor with buffer gas

Mark Bashkansky, Fredrik Fatemi, Igor Vurgaftman

Proceedings Volume 8272, 827217 (2012) https://doi.org/10.1117/12.906433

KEYWORDS: Photons, Quantum memory, Luminescence, Neon, Rubidium, Fabry–Perot interferometers, Avalanche photodetectors, Optical filters, Quantum computing, Quantum communications

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Proceedings Article | 17 February 2011 Paper

SBS-based radar true time delay

Mark Bashkansky, David Walker, Armen Gulian, Michael Steiner

Proceedings Volume 7949, 794918 (2011) https://doi.org/10.1117/12.880792

KEYWORDS: Radar, Optical fibers, Picosecond phenomena, Light scattering, Scattering, Slow light, Phased arrays, Polarization, Semiconductor lasers, Multiplexing

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Proceedings Article | 17 February 2011 Paper

Optical Ramsey interference and its performance in D1 line excitation in rubidium vapor for implementation of a vapor cell clock

Gour Pati, Fredrik Fatemi, Mark Bashkansky, Selim Shahriar

Proceedings Volume 7949, 794910 (2011) https://doi.org/10.1117/12.880779

KEYWORDS: Raman spectroscopy, Clocks, Chemical species, Microwave radiation, Rubidium, Optical testing, Electronics, Bragg cells, Magnetism, Atomic clocks

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Proceedings Article | 18 February 2010 Paper

Prospect for development of a pulsed CPT Raman Ramsey clock using atomic vapor

Gour Pati, Fredrik Fatemi, Mark Bashkansky, Selim Shahriar

Proceedings Volume 7612, 76120D (2010) https://doi.org/10.1117/12.848638

KEYWORDS: Clocks, Chemical species, Microwave radiation, Adaptive optics, Raman spectroscopy, Rubidium, Magnetism, Cesium, Standards development, Modulation

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Proceedings Article | 3 February 2009 Paper

True-time delay steering of phased array radars using slow light

Mark Bashkansky, Zachary Dutton, Armen Gulian, David Walker, Fredrik Fatemi, Michael Steiner

Proceedings Volume 7226, 72260A (2009) https://doi.org/10.1117/12.816324

KEYWORDS: Slow light, Polarization, Radar, Mirrors, Phased arrays, Phase shifts, Optical fibers, Optical amplifiers, Signal attenuation, Solids

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Proceedings Article | 9 February 2007 Paper

Single-beam, dark toroidal optical traps for cold atoms

Fredrik Fatemi, Spencer Olson, Mark Bashkansky, Zachary Dutton, Matthew Terraciano

Proceedings Volume 6483, 648307 (2007) https://doi.org/10.1117/12.701078

KEYWORDS: Chemical species, Spatial light modulators, Optical tweezers, Gaussian beams, Superposition, Scattering, Beam analyzers, Gyroscopes, Singular optics, Interferometry

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Proceedings Article | 9 February 2007 Paper

High-speed dynamic spatial control of cold atoms with combined acousto-optic and spatial light modulation

Fredrik Fatemi, Mark Bashkansky, Zachary Dutton

Proceedings Volume 6483, 648305 (2007) https://doi.org/10.1117/12.701009

KEYWORDS: Chemical species, Spatial light modulators, Clouds, Acousto-optics, Laser scattering, Modulation, Scattering, Optical tweezers, Bragg cells, Light scattering

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Proceedings Article | 8 February 2007 Paper

Reduced density matrix descriptions for electromagnetically induced transparency and related pump-probe optical phenomena in atomic systems

Verne Jacobs, Zachary Dutton, Mark Bashkansky, Michael Steiner, John Reintjes

Proceedings Volume 6482, 64820X (2007) https://doi.org/10.1117/12.716478

KEYWORDS: Electromagnetism, Optical properties, Magnetism, Transparency, Chemical species, Nonlinear optics, Radio propagation, Slow light, Absorption, Maxwell's equations

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Proceedings Article | 21 March 2006 Paper

Liouville-space descriptions for intense-field coherent electromagnetic interactions

Verne Jacobs, Zachary Dutton, Mark Bashkansky, Michael Steiner, John Reintjes

Proceedings Volume 6130, 61300C (2006) https://doi.org/10.1117/12.660192

KEYWORDS: Electromagnetism, Transparency, Optical properties, Radio propagation, Nanostructures, Magnetism, Semiconductors, Absorption, Gases, Plasmas

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Proceedings Article | 4 April 2005 Paper

Channelization architecture for wide-band slow light in atomic vapors

Zachary Dutton, Mark Bashkansky, Michael Steiner, John Reintjes

Proceedings Volume 5735, (2005) https://doi.org/10.1117/12.601714

KEYWORDS: Magnetism, Diffusion, Chemical species, Absorption, Slow light, Transparency, Doppler effect, Rubidium, Solids, Phase shifts

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Proceedings Article | 18 December 2002 Paper

Synthetic aperture imaging at 1.5 um: laboratory demonstration and potential application to planet surface studies

Mark Bashkansky, Robert Lucke, Eric Funk, John Reintjes, Lee Rickard

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460767

KEYWORDS: Signal to noise ratio, Sensors, Synthetic aperture radar, Image resolution, Heterodyning, Mars, Fourier transforms, Planets, Signal processing, Quantum efficiency

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Proceedings Article | 7 June 2002 Paper

Subsurface detection and characterization of Hertzian cracks in advanced ceramic materials using optical coherence tomography

Mark Bashkansky, John Reintjes

Proceedings Volume 4703, (2002) https://doi.org/10.1117/12.469630

KEYWORDS: Optical coherence tomography, Ceramics, Composites, Silicon, Nondestructive evaluation, Light scattering, Scattering, Glasses, Biomedical optics, Defect detection

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Proceedings Article | 2 January 1998 Paper

Optical gating techniques for material inspection

Mark Bashkansky, Michael Duncan, John Reintjes

Proceedings Volume 3201, (1998) https://doi.org/10.1117/12.298019

KEYWORDS: Inspection, Spatial resolution, Nondestructive evaluation, Translucency, Light scattering, Scattering, Optical coherence tomography, Ceramics, Diamond, Silicon films

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SPIE Journal Paper | 1 April 1996

Subsurface defect detection in ceramic materials using optical gating techniques

Philip Battle, Mark Bashkansky, Rita Mahon, John Reintjes

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.601031

KEYWORDS: Ceramics, Raman spectroscopy, Polarizers, Defect detection, Light scattering, Optical amplifiers, Polarization, Silicon, Surface finishing, Amplifiers

Proceedings Article | 30 May 1995 Paper

Measurements of the achievable time-dependent point-spread-function of multiply scattered light between the ballistic and diffuse limits

John Moon, Philip Battle, Mark Bashkansky, John Reintjes, Judith Prewitt

Proceedings Volume 2389, (1995) https://doi.org/10.1117/12.210034

KEYWORDS: Scattering, Diffusion, Light scattering, Imaging systems, Point spread functions, Raman scattering, Anisotropy, Sensors, Optical resolution, Signal to noise ratio

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Proceedings Article | 20 April 1995 Paper

Single-pulse fabrication of improved fiber Bragg gratings using a phase-conjugated KrF excimer laser

Martin Putnam, Charles Askins, Glen Williams, E. Friebele, Mark Bashkansky, John Reintjes

Proceedings Volume 2444, (1995) https://doi.org/10.1117/12.207695

KEYWORDS: Reflectivity, Fiber Bragg gratings, Excimer lasers, Phase conjugation, Amplifiers, Interferometers, Modulation, Phase shift keying, Mirrors, Oscillators

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Proceedings Article | 8 July 1994 Paper

Nonlinear optical field cross-correlation techniques for imaging through a strong scattering medium

Mark Bashkansky, C. Adler, Philip Battle, John Reintjes

Proceedings Volume 2241, (1994) https://doi.org/10.1117/12.179742

KEYWORDS: Light scattering, Scattering, Raman spectroscopy, Laser scattering, Polarization, 3D image reconstruction, 3D image processing, Inverse optics, Correlation function, Polarizers

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Proceedings Article | 14 September 1993 Paper

Time-gated imaging using nonlinear optical techniques applications to turbid materials

John Reintjes, Michael Duncan, Rita Mahon, Lawrence Tankersley, Mark Bashkansky, Judith Prewitt

Proceedings Volume 1888, (1993) https://doi.org/10.1117/12.154673

KEYWORDS: Raman spectroscopy, Light scattering, Raman scattering, Cameras, Image processing, Spatial resolution, Scattering, Gated imaging, Picosecond phenomena, Polarization

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