activity
20222026
most citedFew-cycle vacuum squeezing in nanophotonics

166 citations · 325 across the 22 of their papers we have counts for

collaborators

22 papers

physics.optics2026

Laser electro-optic frequency comb in lithium niobate nanophotonics

Benjamin K. Gutierrez, Yingchu Xu, Nicolas Englebert +8

Optical frequency combs have revolutionized precision science and technology, yet their nanophotonic implementations have failed to simultaneously achieve high efficiency, power, a…

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.optics2026

Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides

Carter Mashburn, Kristina F. Chang, Michael J. Wahl +11

Broadband and high-resolution spectroscopy in the visible and ultraviolet is central to advances in multiple fields, including fundamental quantum physics, biology, atmospheric sci…

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

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.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★ 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.optics2023★ 24 cited

Highly efficient visible and near-IR photon pair generation with thin-film lithium niobate

Nathan A. Harper, Emily Y. Hwang, Ryoto Sekine +4

Efficient on-chip entangled photon pair generation at telecom wavelengths is an integral aspect of emerging quantum optical technologies, particularly for quantum communication and…

cond-mat.mes-hall2023★ 1 cited

Isotropic atomic layer etching of MgO-doped lithium niobate using sequential exposures of H and SF plasmas

Ivy I. Chen, Jennifer Solgaard, Ryoto Sekine +7

Lithium niobate (LiNbO, LN) is a ferroelectric crystal of interest for integrated photonics owing to its large second-order optical nonlinearity and the ability to impart perio…

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★ 10 cited

Visible to Ultraviolet Frequency Comb Generation in Lithium Niobate Nanophotonic Waveguides

Tsung-Han Wu, Luis Ledezma, Connor Fredrick +6

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-pre…

physics.optics2023★ 31 cited

Tunable and efficient ultraviolet generation in nanophotonic lithium niobate

Emily Hwang, Nathan Harper, Ryoto Sekine +3

On-chip ultraviolet sources are of great interest for building compact and scalable atomic clocks, quantum computers, and spectrometers; however, few material platforms are suitabl…

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★ 63 cited

Octave-spanning tunable parametric oscillation in nanophotonics

Luis Ledezma, Arkadev Roy, Luis Costa +6

Widely-tunable coherent sources are desirable in nanophotonics for a multitude of applications ranging from communications to sensing. The mid-infrared spectral region (wavelengths…

quant-ph2022★ 166 cited

Few-cycle vacuum squeezing in nanophotonics

Rajveer Nehra, Ryoto Sekine, Luis Ledezma +4

One of the most fundamental quantum states of light is squeezed vacuum, in which noise in one of the quadratures is less than the standard quantum noise limit. Significant progress…

physics.optics2022★ 7 cited

All-optical ultrafast ReLU function for energy-efficient nanophotonic deep learning

Gordon H. Y. Li, Ryoto Sekine, Rajveer Nehra +4

In recent years, the computational demands of deep learning applications have necessitated the introduction of energy-efficient hardware accelerators. Optical neural networks are a…