activity
20222026
most citedFew-cycle vacuum squeezing in nanophotonics

166 citations · 285 across the 27 of their papers we have counts for

collaborators

27 papers

physics.optics2026

Dynamically reconfigurable THz quantum walk comb laser through subharmonic excitation

Valerio Digiorgio, Robert Matthew Gray, Marco Raffa +5

On-chip frequency combs are increasingly relevant to both laser science and applications. Broad bandwidths and flat-top spectral envelopes are especially desirable for precision sp…

quant-ph2026

Frequency resolved optical gating using parametric amplification for characterizing ultrafast temporally multimode squeezed states

Elina Sendonaris, Thomas Zacharias, Robert Gray +2

Temporally multimode squeezed states have been a topic of recent interest due to their applications in quantum communication, information processing, and sensing. Characterizing th…

physics.optics2026

Quantum Frequency Resolved Optical Gating of Few-Cycle Squeezed Vacuum

Thomas Zacharias, Elina Sendonaris, Robert Gray +5

Offering terahertz of bandwidths and femtosecond timescales, ultrafast optics is enabling both the study of fundamental quantum optical phenomena and the advancement of quantum-enh…

physics.optics2025★ 1 cited

Topological Soliton Frequency Comb in Nanophotonic Lithium Niobate

Nicolas Englebert, Robert M. Gray, Luis Ledezma +6

Frequency combs have revolutionized metrology, ranging, and optical clocks, which have motivated substantial efforts on the development of chip-scale comb sources. The on-chip comb…

physics.optics2025

Quadratic Supercontinuum Generation from UV to Mid-IR in Lithium Niobate Nanophotonics

Selina Zhou, Maximilian Shen, Ryoto Sekine +6

Supercontinuum light sources are widely used for applications ranging from imaging to sensing and frequency comb stabilization. The most common mechanisms for their generation rely…

physics.optics2025★ 1 cited

Two-optical-cycle pulses from nanophotonic two-color soliton compression

Robert M. Gray, Ryoto Sekine, Maximilian Shen +7

Few- and single-cycle optical pulses and their associated ultra-broadband spectra have been crucial in the progress of ultrafast science and technology. Moreover, multi-color wavef…

quant-ph2025

Ultrafast All-Optical Measurement of Squeezed Vacuum in a Lithium Niobate Nanophotonic Circuit

James Williams, Elina Sendonaris, Rajveer Nehra +4

Squeezed vacuum, a fundamental resource for continuous-variable quantum information processing, has been used to demonstrate quantum advantages in sensing, communication, and compu…

physics.optics2025★ 2 cited

Ultrafast neuromorphic computing with nanophotonic optical parametric oscillators

Midya Parto, Gordon H. Y. Li, Ryoto Sekine +5

Over the past decade, artificial intelligence (AI) has led to disruptive advancements in fundamental sciences and everyday technologies. Among various machine learning algorithms,…

physics.optics2025★ 4 cited

All-optical computing with beyond 100-GHz clock rates

Gordon H. Y. Li, Midya Parto, Jinhao Ge +9

A computer's clock rate ultimately determines the minimum time between sequential operations or instructions. Despite exponential advances in electronic computer performance owing…

physics.optics2025

Energy-Efficient Ultrashort-Pulse Characterization using Nanophotonic Parametric Amplification

Thomas Zacharias, Robert Gray, Ryoto Sekine +3

The growth of ultrafast nanophotonic circuits necessitates the development of energy-efficient on-chip pulse characterization techniques. Nanophotonic realizations of Frequency Res…

physics.optics2025

Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Shivam Mundhra, Elina Sendonaris, Robert M. Gray +2

Thin-film lithium niobate (TFLN) has recently emerged as a promising platform for integrated nonlinear photonics, enabling the use of optical parametric amplifiers (OPAs) for appli…

physics.optics2024

Ultrafast single-photon detection using nanophotonic parametric amplifiers

Elina Sendonaris, James Williams, Rajveer Nehra +4

Integrated photonic quantum information processing (QIP) has advanced rapidly due to progress in various nanophotonic platforms. Single photon detectors have been the subject of in…

physics.optics2024

0.7 MW Yb:YAG pumped degenerate optical parametric oscillator at 2.06 μm

Anni Li, Mehran Bahri, Robert M. Gray +5

Frequency comb and field-resolved broadband absorption spectroscopy are promising techniques for rapid, precise, and sensitive detection of short-lived atmospheric pollutants on-si…

physics.optics2024★ 9 cited

Large-scale time-multiplexed nanophotonic parametric oscillators

Robert M. Gray, Ryoto Sekine, Luis Ledezma +5

Arrays of nonlinear resonators offer a fertile ground for a wide range of complex phenomena and opportunities for advanced photonic sensing and computing. Recently, significant att…

physics.optics2024★ 2 cited

Ultra-Short Pulse Biphoton Source in Lithium Niobate Nanophotonics at 2m

James Williams, Rajveer Nehra, Elina Sendonaris +4

Photonics offers unique capabilities for quantum information processing (QIP) such as room-temperature operation, the scalability of nanophotonics, and access to ultrabroad bandwid…

physics.optics2024★ 1 cited

Optical-parametric-amplification-enhanced background-free spectroscopy

Mingchen Liu, Robert M. Gray, Arkadev Roy +2

Traditional absorption spectroscopy has fundamental difficulty in resolving small absorbance from strong background due to the instability of laser sources. Existing background-fre…

physics.optics2023

Cavity Soliton-Induced Topological Edge States

Christian R. Leefmans, Nicolas Englebert, James Williams +5

Over the past decade, cavity solitons have attracted substantial attention for their rich dynamics and their myriad potential applications. Recently, there has been growing interes…

physics.optics2023

Deep Learning with Photonic Neural Cellular Automata

Gordon H. Y. Li, Christian R. Leefmans, James Williams +3

Rapid advancements in deep learning over the past decade have fueled an insatiable demand for efficient and scalable hardware. Photonics offers a promising solution by leveraging t…

physics.optics2023★ 6 cited

Multi-Octave Frequency Comb from an Ultra-Low-Threshold Nanophotonic Parametric Oscillator

Ryoto Sekine, Robert M. Gray, Luis Ledezma +3

Ultrabroadband frequency combs coherently unite distant portions of the electromagnetic spectrum. They underpin discoveries in ultrafast science and serve as the building blocks of…

physics.optics2023★ 2 cited

Mode-locked laser in nanophotonic lithium niobate

Qiushi Guo, Ryoto Sekine, James A. Williams +8

Mode-locked lasers (MLLs) have enabled ultrafast sciences and technologies by generating ultrashort pulses with peak powers substantially exceeding their average powers. Recently,…

physics.optics2023★ 4 cited

Enhanced sensitivity via non-Hermitian topology

Midya Parto, Christian Leefmans, James Williams +1

Sensors are indispensable tools of modern life that are ubiquitously used in diverse settings ranging from smartphones and autonomous vehicles to the healthcare industry and space…

physics.optics2023★ 3 cited

Quadratic-soliton-enhanced mid-IR molecular sensing

Robert M. Gray, Mingchen Liu, Selina Zhou +3

Optical solitons have long been of interest both from a fundamental perspective and because of their application potential. Both cubic (Kerr) and quadratic nonlinearities can lead…

physics.optics2022

Visible-to-mid-IR tunable frequency comb in nanophotonics

Arkadev Roy, Luis Ledezma, Luis Costa +6

Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequen…

physics.optics2022★ 14 cited

High-Power Mid-IR Few-Cycle Frequency Comb from Quadratic Solitons in an Optical Parametric Oscillator

Mingchen Liu, Robert M. Gray, Arkadev Roy +5

Powerful and efficient optical frequency combs in the mid-infrared (MIR) spectral region are highly desirable for a broad range of applications. Despite extensive efforts utilizing…