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Physics

Optical physics and communications

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Displaying 1 - 25 of 846

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

Variable Bell states in a polarization-entangled photon source

July 14, 2025
Author(s)
Jabir Marakkarakath Vadakkepurayil, Shruti Sundar, Daniel Razansky
Bell states are fundamental resources in quantum optics, underpinning a range of applications in quantum computation and communication. However, many experimental sources focus on generating a single Bell state, limiting their utility for protocols that

All-Optical Quenching of Integrated Frequency Comb Noise

July 9, 2025
Author(s)
Gregory Moille, Pradyoth Shandilya, Jordan Stone, Curtis Menyuk, Kartik Srinivasan
Integrated frequency combs promise transformation of lab-based metrology into disruptive real-world applications, particularly with octave-spanning microcombs enabling self-referenced optical synthesis and clock implementations. However, the integrated

Ellipsometry in the EUV Regime

April 24, 2025
Author(s)
Aaron Chew, Bryan Barnes, Eric Shirley, Thomas Germer
We propose and analyze the sensitivity of an ellipsometer that uses extreme ultraviolet (EUV) light from the synchrotron SURF-III. The ellipsometer employs a four-mirror geometry to control polarization, as documented in the associated patent. With a

Enabling phase stabilization of quantum networks via displacement-enhanced photon counting

April 23, 2025
Author(s)
Jabir Marakkarakath Vadakkepurayil, Daehyun Ahn, Ivan Burenkov, Abdella Battou, Sergey Polyakov, N. Fajar R. Annafianto
Optical phase stabilization, tracking, and locking in long fiber links are pivotal for the functionality of many communication protocols and distributed sensors. However, conventional phase stabilization methods use strong optical probe signals that may

Nanophotonic oscillators for laser conversion beyond an octave

February 11, 2025
Author(s)
Grant Brodnik, Haixin Liu, David Carlson, Jennifer Black, Scott Papp
Many uses of lasers place the highest importance on access to specific wavelength bands. For example, mobilizing optical-atomic clocks for a leap in sensing requires compact lasers at frequencies spread across the visible and near infrared. Integrated

Variation of radiometric throughput with simple perturbations

February 3, 2025
Author(s)
Eric Shirley
This work considers the effects of changes of distance, centering and tilting of optical elements on radiometric throughput. Analytical formulas for leading-order effects are compared to numerical calculations for validation purposes.

Deployment of a Transportable Yb Optical Lattice Clock

January 14, 2025
Author(s)
Tobias Bothwell, Tanner Grogan, Marco Pomponio, Takuma Nakamura, Craig Nelson, Archita Hati, Franklyn Quinlan, Andrew Ludlow, Wesley Brand, Robert Fasano, Yun-Jhih Chen, Thomas Akin, Joseph Whalen, Richard Fox, ignacio baldoni, Benjamin Rauf, michele giunta, ronald holzwarth, Steven Peil

Noiseless Loss Suppression for Entanglement Distribution

December 2, 2024
Author(s)
Cory Nunn, Daniel Jones, Todd Pittman, Brian Kirby
Recent work by Mičuda et al. [Phys. Rev. Lett 109, 180503 (2012)] suggests that pairing noiseless amplification with noiseless attenuation can conditionally suppress loss terms in the direct transmission of quantum states. Here we extend this work to

Kinetic inductance current sensor for visible to near-infrared wavelength transition-edge sensor readout

November 6, 2024
Author(s)
Paul Szypryt, Douglas Bennett, Ian Fogarty Florang, Joseph Fowler, Jiansong Gao, Andrea Giachero, Ruslan Hummatov, Adriana Lita, John Mates, Sae Woo Nam, Daniel Swetz, Joel Ullom, Michael Vissers, Jordan Wheeler
Single-photon detectors based on the superconducting transition-edge sensor are used in a number of visible to near-infrared applications, particularly for photon-number-resolving measurements in quantum information science. To be practical for large-scale

Optical Studies of Silicon Color Centers and CC-LEDs for Consideration as Telecom Quantum Light Sources

October 29, 2024
Author(s)
Nikki Ebadollahi, Pradeep Namboodiri, Vijin Kizhake Veetil, Marcelo Davanco, Kartik Srinivasan, Aaron Katzenmeyer, Matthew Pelton, Joshua Pomeroy
We synthesized and studied color centers on silicon-on-insulator wafers with photoluminescence mapping and spectroscopy, and fabricated silicon W- and G- color center LEDs towards electrically-pumped single photon sources.

Phase stabilization with single photon detection for quantum networks

October 29, 2024
Author(s)
Jabir Marakkarakath Vadakkepurayil, Daehyun Ahn, FNU Nur Fajar Rizqi Annafianto, Ivan Burenkov, Abdella Battou, Sergey Polyakov
Maintaining stable phases in interferometric systems and optical links is pivotal for the functionality of diverse quantum communication protocols. However, conventional phase stabilization methods use classical optical signals that may corrupt quantum

Emerging integrated laser technologies in the visible and short near-infrared

October 18, 2024
Author(s)
Xiyuan Lu, Lin Chang, Minh Tran, Tin Komljenovic, John Bowers, Kartik Srinivasan
Applications in timekeeping, quantum sensing and quantum computing have sparked growing demand for high-performance photonic integrated circuit (PIC) lasers at visible and short near-infrared wavelengths between 400 nm and 1,000 nm. This Review summarizes

Binary Pseudo-Random Array for Calibration of Interferometers with Transmission Spheres and Cylinders

September 30, 2024
Author(s)
Ulf Griesmann, Keiko Munechika, Simon Rochester, Weilun Chao, Carlos Pina-Hernandez, Kaito Yamada, Michael Biskach, Peter Takacs, Valeriy Yashchuk
Binary pseudo-random array (BPRA) "white noise" artifacts are highly effective for characterizing the instrument transfer function (ITF) of surface topography metrology tools and wavefront measurement instruments. These BPRA artifacts feature all spatial

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

September 16, 2024
Author(s)
Noah Schlossberger, Samuel Berweger, Nikunjkumar Prajapati, Andrew Rotunno, Alexandra Artusio-Glimpse, Matthew Simons, Abrar Sheikh, Eric Norrgard, Stephen Eckel, Christopher 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. Over the

Foundry manufacturing of octave-spanning microcombs

September 6, 2024
Author(s)
Jizhao Zang, Haixin Liu, Travis Briles, Scott Papp
Soliton microcombs provide a chip-based, octave-spanning source for self-referencing and optical metrology. We use a silicon nitride integrated photonics foundry to manufacture 280 single-chip solutions of octave-spanning microcombs on a wafer. By group

Ultrastable vacuum-gap Fabry-Perot cavities 2 operated in air

August 21, 2024
Author(s)
Susan Schima, Franklyn Quinlan, Yifan Liu, Charles McLemore, Takuma Nakamura, Nazanin Hoghooghi, Scott Diddams, Peter Rakich, Dahyeon Lee, Naijun Jin, Megan Kelleher, Haotian Cheng
We demonstrate a vacuum-gap ultrastable optical reference cavity that does not require a vacuum enclosure. Our simple method of optical contact bonding in a vacuum environment allows for cavity operation in air while maintaining vacuum between the cavity
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