Nanoscale atomic suspended waveguides for improved vapour coherence times and optical frequency referencing

Zektzer, Roy; Mazurski, Noa; Barash, Yefim; Levy, Uriel

doi:10.1038/s41566-021-00853-4

Cited by 24 publications

(13 citation statements)

References 47 publications

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“…( 29)-( 30) without additional assumptions about the field structure within the layer, which are usually associated with the imposition of dielectric boundary conditions at the initial stage of the calculations. This achievement of the proposed approach is promising in the development of devices based on the resonant interaction of light with plasmonic nanostructures surrounded by alkali metal vapors [6,30], and prospective in the implementation of gas cells with temperature tunable parameters [40,41].…”

Section: Discussionmentioning

confidence: 93%

“…the sum of natural and collisional widths. Equations ( 2), ( 5), (6), and ( 9) form a self-consistent set of equations governing the dynamics of the consideration system in the linear regime of interactions.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…A much cheaper and more available alternative is hot atomic vapors, which can be enclosed in miniature spectroscopic cells and used continuously for extended periods of time [2]. Studying the optical properties of thinvapor-layers (TVL) are highly relevant due to a number of important applications, such as practical implementation of atomic sensors, magnetometers and methods for frequency stabilization of lasers, as well as the possibility to conduct fundamental research into the nature of interaction of atoms with dielectric surfaces, detailed studies of collision processes in atomic ensembles, and effects leading to the shift and broadening of spectral lines [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Rigorous theory of thin-vapor-layer linear optical properties: The case of specular reflection of atoms colliding with the walls

Ermolaev¹,

Vartanyan²

2020

Phys. Rev. A

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Hot alkali metal vapors enclosed in sub-micron spectroscopic cells provide an ideal system for fundamental studies of the atom-wall and atom-light interactions at nanoscale. Here, we propose a novel approach for calculating the eigenmodes of a thin-vapor-layer beyond the limitations of the first-order perturbation theory in optical density for the case of quenching of atomic polarization upon collisions of atoms with dielectric walls. We show that higher-order optical density corrections lead to a remarkable density-dependent blue shift and deformation of the spectral line shapes of reflection, transmission, and absorption. We also demonstrate that the eigenmodes of the thinvapor-layer can be calculated independently of the choice of optical boundary conditions. This greatly extends the applicability of the constructed theory for the development of miniature atomic sensors.

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Section: Discussionmentioning

confidence: 93%

Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rigorous theory of thin-vapor-layer linear optical properties: The case of specular reflection of atoms colliding with the walls

Ermolaev¹,

Vartanyan²

2020

Phys. Rev. A

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“…For instance, the absorption contrast can serve as a precise thermometer. Moreover, the output can be used to lock the frequency of a laser within a miniaturized architecture ( 8 , 28 , 29 ).…”

Section: Discussionmentioning

confidence: 99%

Chip-scale atomic wave-meter enabled by machine learning

et al. 2022

Self Cite

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The quest for miniaturized optical wave-meters and spectrometers has accelerated the design of novel approaches in the field. Particularly, random spectrometers (RS) using the one-to-one correlation between the wavelength and an output random interference pattern emerged as a promising tool combining high spectral resolution and cost-effectiveness. Recently, a chip-scale platform for RS has been demonstrated with a markedly reduced footprint. Yet, despite the evident advantages of such modalities, they are very susceptible to environmental fluctuations and require an external calibration process. To address these challenges, we demonstrate a paradigm shift in the field, enabled by the integration of atomic vapor with a photonic chip and the use of a machine learning classification algorithm. Our approach provides a random wave-meter on chip device with accurate calibration and enhanced robustness against environmental fluctuations. The demonstrated device is expected to pave the way toward fully integrated spectrometers advancing the field of silicon photonics.

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“…Following chip scale devices approach, integration of logic gates based on atomic vapor, to solid-state chips needs mediating a coupler of confined light to atomic media and confine treated signal back to chip, where will be lossy 27 . Many studies show best way to benefit atom-light interaction on an integrated chip, designs based on coupling of atoms with confined light in solid state 28 . One of promising approaches to design chip scale logic gates is harvesting interference of distinct confined plasmonic modes in metallic nanostructures to achieve “on”, “off” logic states, with benefit of solving mismatch between photonics and electronics 29 .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional logic gates based on resonant transmission at atomic-plasmonic structure

Mosleh

Hamidi

Ranjbaran

2022

Sci Rep

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Regarding the confinement of light at nanoscale dimensions in plasmonic structures, we try to show the impact of hot atomic vapor spectroscopy on a miniaturized scale. In such a combined structure, resonant coupling of the atom to plasmonic mode provides diverse ways to control the optical response of the system. We fabricate an atomic plasmonic cell based on Rubidium atomic vapor and gold plasmonic thin film onto the Kretschmann setup to introduce resonant coupling (EIT-like) of atom-plasmons as a tunable all-optical bandpass filter, switch, or logic gates. These all-optical devices such as NOR and XNOR logic gates are well done based on the filter by incidence angle of light, temperature as well as the external magnetic field. We believe the possibility of easy modulation of atomic susceptibility, not only through direct alteration on atoms but also through common methods available for modulation of plasmonic mode, has the potential to design and fabricate modern all-optical devices.

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Nanoscale atomic suspended waveguides for improved vapour coherence times and optical frequency referencing

Cited by 24 publications

References 47 publications

Rigorous theory of thin-vapor-layer linear optical properties: The case of specular reflection of atoms colliding with the walls

Rigorous theory of thin-vapor-layer linear optical properties: The case of specular reflection of atoms colliding with the walls

Chip-scale atomic wave-meter enabled by machine learning

Multifunctional logic gates based on resonant transmission at atomic-plasmonic structure

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