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Physics

Optical physics and communications

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Displaying 1 - 25 of 874

Single-photon dynamics of a telecom-band quantum dot emitter integrated with a double solid immersion lens

September 24, 2026
Author(s)
Daehyun Ahn, Ivan Burenkov, Lijun Ma, Young-Ho Ko, Yudong Jang, Donghan Lee, Mohamed Benyoucef, Sergey Polyakov
Investigating single-photon dynamics is crucial for understanding and verifying the quantum characteristics of single-photon emitters. Here, we demonstrate a telecom-band quantum dot single-photon emitter integrated with a lithographically aligned double

Entanglement Distribution over a Polarization-Stabilized Aerial Fiber

June 15, 2026
Author(s)
Yicheng Shi, Anouar Rahmouni, Pranish Shrestha, Mheni Merzouki, Abdella Battou, Oliver Slattery, Thomas Gerrits, Mehdi Namazi, Mael Flament, Anne Margaret Lazenby, Gabriel Bello Portmann, Jing Su
Distributing quantum entanglement over telecommunication fiber is a fundamental task in metropolitan-scale quantum networks, enabling advanced applications such as quantum-secured communication, quantum sensing and distributed quantum computing. Although

Entanglement Distribution over a Polarization-Stabilized Aerial Fiber

June 1, 2026
Author(s)
Yicheng Shi, Anouar Rahmouni, Pranish Shrestha, Mheni Merzouki, Abdella Battou, Oliver Slattery, Thomas Gerrits, Jing Su, Gabriel Portmann, Anne Lazenby, Mael Flament, Mehdi Namazi
We experimentally demonstrate the distribution of polarization-entangled photons between two laboratories connected by a 62-km, partially-aerial fiber. Using time-multiplexed active polarization stabilization, we maintain a pair rate of 1500 pairs per

A generative pre-trained transformer with Kerr-soliton attention

May 22, 2026
Author(s)
Lindell Williams, Yan Jin, Scott Papp
Artificial intelligence systems, particularly through generative pre-trained transformers (GPTs), have enabled capability-rich language models, but their operation incurs substantial costs in digital computation, memory, and data movement. Attention is a

CCAT: Silicon-Platelet Feedhorns for Submillimeter Wavelengths

May 4, 2026
Author(s)
Jason Austermann, James Beall, Johannes Hubmayr, Matthew Koc, Joel Ullom, Jeffrey Van Lanen, Michael Vissers, Jordan Wheeler
Silicon-platelet feedhorn arrays are an established technology at millimeter wavelengths that, for some applications, can provide significant advantages over traditional direct-machined metal feedhorns. The Prime-Cam focal planes operating in the 350 GHz (

Long-term phase stabilization for metropolitan-scale dark quantum channels

May 2, 2026
Author(s)
Daehyun Ahn, Ivan Burenkov, Jabir Marakkarakath Vadakkepurayil, Mheni Merzouki, Paulina Kuo, Abdella Battou, Thomas Gerrits, Sergey Polyakov
We employ a frequency comb to demonstrate a multiband wavelength-division-multiplexing (WDM)-based phase stabilization over a metropolitan-scale fiber link while maintaining a dark quantum channel. We achieve phase stability over 100 seconds, a four orders

Detecting fundamental chiral biosignatures in the ultraviolet polarization spectrum

April 25, 2026
Author(s)
William Sparks, Thomas Germer, Frank Robb, Kevin Hand, Michael Bramble, George Cooper, Hiroshi Imanaka
Chiral molecules are ubiquitous and necessary for life as we know it. Chirality is commonly defined as molecules composed of two non-superimposable mirror images (enantiomers). In extant life, biopolymers, including nucleic acids (DNA, RNA) are homochiral

Wavefront mapping for absolute atom interferometry

April 10, 2026
Author(s)
Joseph Junca, John Kitching, William McGehee
Wavefront distortions are a leading source of systematic uncertainty in light-pulse atom interferometry, limiting absolute measurements of gravitational acceleration at the 30 nm/s2 level. Here, we demonstrate in situ spatially-resolved measurement of the

Photonic integrated circuit optical parametric oscillators

December 22, 2025
Author(s)
Xiyuan Lu, Robert Gray, Jordan Stone, Selina Zhou, Nicolas Englebert, Alireza Marandi, Kartik Srinivasan
Optical parametric oscillators (OPOs) are versatile nonlinear optical devices for wavelength generation from the visible to the mid-infrared. Recently, OPO research has merged with photonic integrated circuits (PICs) in the advancement of miniaturized, on

Two-dimensional imaging of electromagnetic fields via light sheet fluorescence imaging with Rydberg atoms

November 24, 2025
Author(s)
Noah Schlossberger, Tate McDonald, Kevin Su, Rajavardhan Talashila, Robert Behary, Charles L. Patrick, Eugeniy E. Mikhailov, Seth Aubin, Irena Nokivoka, Christopher Holloway, Nikunjkumar Prajapati
Imaging of electric and magnetic fields is limited by the fact that conventional field probes rely on conductive elements that perturb the fields they are meant to measure and require either spatial scanning or arrays to produce field maps. Atomic sensors

Single-photon time-of-flight measurements for benchmarking time transfer in quantum networks

November 14, 2025
Author(s)
Dongxing He, Paulina Kuo, YaShian Li-Baboud, Anouar Rahmouni, Matthew Shaw, Boris Korzh, Thomas Gerrits
We propose a single-photon time-of-flight (ToF) measurement method to benchmark fiber-path delay estimation in optical two-way time and frequency transfer (OTWTFT) protocols. The single-photon ToF measurement yields uncertainties better than 2 ps (0.5 mm

Toward Chaotic Group Velocity Hopping of an On-Chip Dissipative Kerr Soliton

September 23, 2025
Author(s)
Gregory Moille, Sashank Kaushik Sridhar, Pradyoth Shandilya, Avik Dutt, Curtis Menyuk, Kartik Srinivasan
Chaos enables randomness-based applications, particularly in photonic systems. Integrated optical frequency combs (microcombs) have previously been observed in either chaotic modulation instability or stable, low-noise dissipative Kerr soliton (DKS)

Determining angle of arrival of radio frequency fields using subwavelength, amplitude-only measurements of standing waves in a Rydberg atom sensor

September 15, 2025
Author(s)
Rajavardhan Talashila, William Watterson, Benjamin Moser, Joshua Gordon, Alexandra Artusio-Glimpse, Nikunjkumar Prajapati, Noah Schlossberger, Matthew Simons, Christopher Holloway
Deep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of omni-directional time varying fields all in a compact form factor. However, in most applications

On-chip multi-timescale spatiotemporal optical synchronization

September 12, 2025
Author(s)
Lida Xu, Mahmoud Mehrabad, Christopher Flower, Gregory Moille, Alessandro Restelli, Daniel Suarez-Forero, Yanne Chembo, Sunil Mittal, Kartik Srinivasan, Mohammad Hafezi
Mode locking is foundational to nonlinear optics, enabling advances in metrology, spectroscopy, and communications. However, it remains unexplored in nonharmonic, multi-timescale regimes. Here, we realize on-chip multi-timescale synchronization using

Single-photon Sources and Detectors Dictionary

August 4, 2025
Author(s)
Joshua Bienfang, Thomas Gerrits, Paulina Kuo, Alan Migdall, Sergey Polyakov, Oliver Slattery
The intention of this dictionary is to define relevant terms and metrics used in the characterization of single-photon detectors and sources with the goal to promote better understanding and communication of those metrics across the single-photon
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