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Physics

Optical physics and communications

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Displaying 26 - 50 of 846

Fiber-coupled 2 mL vacuum-gap Fabry-Perot reference cavity for laser stabilization

May 25, 2024
Author(s)
Charles McLemore, Naijun Jin, Megan Kelleher, Yizhi Luo, Dahyeon Lee, Yifan Liu, Takuma Nakamura, David Mason, Peter Rakich, Scott Diddams, Franklyn Quinlan
Vacuum-gap Fabry-Perot cavities are indispensable tools for vastly improving the frequency stability of lasers, with applications across a diverse range of scientific and industrial pursuits. However, making these cavity-based laser stabilization systems

An atomic boson sampler

May 8, 2024
Author(s)
Aaron Young, Shawn Geller, William Eckner, Nathan Schine, Scott Glancy, Emanuel Knill, Adam Kaufman

Rydberg states of alkali atoms in atomic vapor as SI-traceable field probes and communications receivers

May 8, 2024
Author(s)
Noah Schlossberger, Nik Prajapati, Samuel Berweger, Andrew Rotunno, Aly Artusio-Glimpse, Abrar Sheikh, Eric Norrgard, Christopher L. Holloway, Stephen Eckel
Rydberg states of alkali atoms are highly sensitive to electric fields because their electron wavefunction has a large spatial extent, leading to large polarizabilities for static fields and large transition dipole moments for time-varying fields

Rydberg states of alkali atoms in atomic vapor as SI-traceable field probes and communications receivers

May 8, 2024
Author(s)
Noah Schlossberger, Nik Prajapati, Samuel Berweger, Aly Artusio-Glimpse, Matt Simons, Abrar Sheikh, Andrew Rotunno, Eric Norrgard, Stephen Eckel, Christopher L. Holloway
Rydberg states of alkali atoms are highly sensitive to electric fields because their electron wavefunction has a large spatial extent, leading to large polarizabilities for static fields and large transition dipole moments for time-varying fields

Parametrically driven pure-Kerr dissipative solitons in a chip-integrated microcavity

March 14, 2024
Author(s)
Gregory Moille, Miriam Leonhardt, David Paligora, Nicolas Englebert, Francois Leo, Julien Fatome, Kartik Srinivasan, Miro Erkintalo
The discovery that externally-driven nonlinear optical resonators can sustain ultrashort pulses cor- responding to coherent optical frequency combs has enabled landmark advances in applications from telecommunications to sensing. The research focus has

Low-power, agile electro-optic frequency comb spectrometer for integrated sensors

March 11, 2024
Author(s)
Kyunghun Han, David Long, Sean Bresler, Junyeob Song, Yiliang Bao, Benjamin Reschovsky, Kartik Srinivasan, Jason J. Gorman, Vladimir Aksyuk, Thomas W. LeBrun
Sensing platforms based upon photonic integrated circuits have shown considerable promise; however, they require corresponding advancements in integrated optical readout technologies. Here, we present an on-chip spectrometer that leverages an integrated

Increased instantaneous bandwidth of Rydberg atom electrometry with an optical frequency comb probe

February 27, 2024
Author(s)
Aly Artusio-Glimpse, David Long, Sean Bresler, Nik Prajapati, Dangka Shylla, Andrew Rotunno, Matt Simons, Samuel Berweger, Noah Schlossberger, Thomas W. LeBrun, Christopher L. Holloway
We show that the use of a probe optical frequency comb leads to dramatically improved bandwidth (as high as 12+/-1 MHz) for the detection of modulated radio frequencies in Rydberg atom-based electrometry.

Zeeman-resolved Autler-Townes splitting in Rydberg atoms with a tunable RF resonance and a single transition dipole moment

February 21, 2024
Author(s)
Noah Schlossberger, Drew Rotunno, Aly Artusio-Glimpse, Nik Prajapati, Samuel Berweger, Dangka Shylla, Matt Simons, Christopher L. Holloway
Applying a magnetic field as a method for tuning the frequency of Autler-Townes splitting for Rydberg electrometry has recently been demonstrated. In this Letter, we provide a theoretical understanding of Rydberg electromechanically-induced-transparency

Low-noise microwave generation with an air-gap optical reference cavity

January 30, 2024
Author(s)
Yifan Liu, Dahyeon Lee, Takuma Nakamura, Naijun Jin, Haotian Cheng, Megan Kelleher, Charles McLemore, Igor Kudelin, William Groman, Scott Diddams, Peter Rakich, Franklyn Quinlan
We demonstrate a high finesse, microfabricated mirror-based, air-gap cavity with volume less than 1 ml, constructed in an array, that can support low-noise microwave generation through optical frequency division. We use the air-gap cavity in conjunction

Visible to Ultraviolet Frequency Comb Generation in Lithium Niobate Nanophotonic Waveguides

January 15, 2024
Author(s)
Tsung Han Wu, Luis Ledezma, Connor Fredrick, Pooja Sekhar, Ryoto Sekine, Quishi Guo, Ryan Briggs, Alireza Marandi, Scott Diddams
The introduction of nonlinear nanophotonic devices to the field of optical frequency comb metrology has enabled new opportunities for low-power and chip-integrated clocks, high-precision frequency synthesis, and broad bandwidth spectroscopy. However, most

Threshold and Laser Conversion in Nanostructured-Resonator Parametric Oscillators

January 10, 2024
Author(s)
Haixin Liu, Grant Brodnik, Jizhao Zang, David Carlson, Jennifer Black, Scott Papp
We explore optical parametric oscillation (OPO) in nanophotonic resonators, enabling arbitrary, nonlinear phase matching and nearly lossless control of energy conversion. Such pristine OPO laser converters are determined by nonlinear light-matter

Photonic Online Learning

January 9, 2024
Author(s)
Sonia Buckley, Adam McCaughan, Bakhrom Oripov
Training in machine learning necessarily involves more operations than inference only, with higher precision, more memory, and added computational complexity. In hardware, many implementations side-step this issue by designing "inference-only" hardware

Scalable and robust beam shaping using apodized fish-bone grating couplers

November 20, 2023
Author(s)
Chad Ropp, Dhriti Maurya, Alexander Yulaev, Daron Westly, Gregory Simelgor, Vladimir Aksyuk
Efficient power coupling between guided and free-space optical modes requires precision spatial mode matching with apodized Bragg gratings. Yet, grating apodizations are often limited by the minimum feature size realizable by the fabrication approach

Direct-Laser-Written Polymer Nanowire Waveguides for Broadband Single Photon Collection from Epitaxial Quantum Dots into a Gaussian-like Mode

November 16, 2023
Author(s)
Edgar Perez, Cori Haws, Marcelo Davanco, Jindong Song, Luca Sapienza, Kartik Srinivasan
Single epitaxial quantum dots (QDs) are a leading technology for quantum light generation, particularly when they are embedded in photonic geometries that enhance their emission into a targeted and confined mode. However, coupling this mode into a

A novel approach to interface high-Q Fabry-Perot resonators with photonic circuits

November 3, 2023
Author(s)
Haotian Cheng, Naijun Jin, Zhaowei Dai, Chao Xiang, Joel Guo, Yishu Zhou, Scott Diddams, John Bowers, Owen Miller, Peter Rakich
The unique benefits of Fabry–Pérot resonators as frequency-stable reference cavities and as an efficient interface between atoms and photons make them an indispensable resource for emerging photonic technologies. To bring these performance benefits to next

Superconducting X-ray Sensors for Tomography of Microelectronics

November 1, 2023
Author(s)
Joseph Fowler, Zachary H. Levine, Paul Szypryt, Daniel Swetz
Tomographic imaging of integrated circuits at scales smaller than 1 micrometer is a challenging x-ray measurement. We describe a research instrument based upon superconducting x-ray microcalorimeters, which help to discriminate among materials in a sample
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