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Related papers: Intensity Noise Optimization of a Mid-Infrared Fre…

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The employment of ultrashort laser sources at the mid-IR spectral region for transparent materials is designed to open new routes for laser patterning and a wealth of exciting applications in optics and photonics. To elucidate the material…

Optics · Physics 2023-02-08 George D Tsibidis , Emmanuel Stratakis

An optical frequency comb generated with an electro-optic phase modulator and a chirped radiofrequency waveform is used to perform saturation and pump-probe spectroscopy on the $D_1$ and $D_2$ transitions of atomic potassium. With a comb…

Atomic Physics · Physics 2016-12-21 David A. Long , Adam J. Fleisher , David F. Plusquellic , Joseph T. Hodges

We report, for the first time to the best of our knowledge, spectral phase characterization and line-by-line pulse shaping of an optical frequency comb generated by nonlinear wave mixing in a microring resonator. Through programmable pulse…

We introduce an ultrafast, bright, entangled twin-beam source generated by type-0 parametric down-conversion in periodically-poled lithium niobate at MHz repetition rate, with continuously tunable Schmidt number $K$ set by the pump pulse…

Improvements to dual-comb interferometers will benefit precision spectroscopy and sensing, distance metrology, tomography, telecommunications etc. A specific requirement of such interferometers is to enforce mutual coherence between the two…

Optics · Physics 2018-08-10 Zaijun Chen , Ming Yan , Theodor W. Hänsch , Nathalie Picqué

A closed-form approximate expression is presented for the short time-frame development of silicon diode sensor signals in the context of high frame-rate detection of incident X-ray fluxes, in the limit that the X-ray absorption profile…

Instrumentation and Detectors · Physics 2020-04-22 Bruce A. Schumm

Ultra-intense laser-matter interaction experiments (>10$^{18}$ W/cm$^{2}$) with dense targets are highly sensitive to the effect of laser "noise" (in the form of pre-pulses) preceding the main ultra-intense pulse. These system-dependent…

Instrumentation and Detectors · Physics 2015-06-22 S. Feister , J. A. Nees , J. T. Morrison , K. D. Frische , C. Orban , E. A. Chowdhury , W. M. Roquemore

We outline an approach for improving the temporal contrast of a high-intensity laser system by $>$8 orders of magnitude using non-collinear sum-frequency generation with the signal and idler of an optical parametric amplifier. We…

Optics · Physics 2019-06-26 E. Cunningham , E. Galtier , G. Dyer , J. Robinson , A. Fry

Time-delay cosmography in strongly lensed quasars offer an independent way of measuring the Hubble constant, $H_0$. However, it has been proposed that the combination of microlensing and source-size effects, also known as microlensing time…

Astrophysics of Galaxies · Physics 2021-03-24 J. H. H. Chan , K. Rojas , M. Millon , F. Courbin , V. Bonvin , G. Jauffret

We present the first experimental demonstration over a 43-km-long urban fiber network of a local two-way optical frequency comparison, which does not require any synchronization of the measurements. It was combined with a regular…

Quantum Physics · Physics 2017-05-24 Won-Kyu Lee , Fabio Stefani , Anthony Bercy , Olivier Lopez , Anne Amy-Klein , Paul-Eric Pottie

We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control. We analytically show that the intensity, time duration and group…

Optics · Physics 2009-11-13 Matteo Conforti , Fabio Baronio , Antonio Degasperis , Stefan Wabnitz

Motivated by the pursuit of a simple system to produce non-classical light sources for long- distance quantum communication, we generate for the first time an all-fiber source of pulsed twin beams in 1550 nm band by using a high gain fiber…

Quantum Physics · Physics 2013-01-01 Xueshi Guo , Xiaoying Li , Nannan Liu , Lei Yang , Z. Y. Ou

Precision pulsar timing requires optimization against measurement errors and astrophysical variance from the neutron stars themselves and the interstellar medium. We investigate optimization of arrival time precision as a function of radio…

High Energy Astrophysical Phenomena · Physics 2018-06-28 M. T. Lam , M. A. McLaughlin , J. M. Cordes , S. Chatterjee , T. J. W. Lazio

We explore self-induced parametric coupling, also called internal resonances (IRs), in a membrane nanoelectromechanical system. Specifically, we focus on the formation of a limit cycle manifesting as a phononic frequency comb. Utilizing a…

Mesoscale and Nanoscale Physics · Physics 2025-08-08 Mengqi Fu , Orjan Ameye , Fan Yang , Jan Košata , Javier del Pino , Oded Zilberberg , Elke Scheer

A mid-Infrared frequency comb is produced via an optical parametric oscillator (OPO) pumped by an amplified 100 MHz Yb:fiber mode-locked laser. We use this source to make measurements of the concentration of the atmospherically-relevant…

Optics · Physics 2015-05-20 Lora Nugent-Glandorf , Fabrizio Giorgetta , Scott A. Diddams

In the context of the Laser Interferometer Space Antenna (LISA), the laser subsystems exhibit frequency fluctuations that introduce significant levels of noise into the measurements, surpassing the gravitational wave signal by several…

Instrumentation and Detectors · Physics 2024-01-15 Philipp Euringer , Niklas Houba , Gerald Hechenblaikner , Oliver Mandel , Francis Soualle , Walter Fichter

We demonstrate the compression of electron pulses in a high-brightness ultrafast electron diffraction (UED) instrument using phase-locked microwave signals directly generated from a mode-locked femtosecond oscillator. Additionally, a…

Plasma Physics · Physics 2017-08-03 Martin R. Otto , Laurent P. Rene de Cotret , Mark J. Stern , Bradley J. Siwick

Dual-comb spectroscopy has been proven a powerful tool in molecular characterization, which remains challenging to implement in the mid-infrared region due to difficulties in the realization of two mutually locked comb sources and efficient…

The Crab Pulsar is known to feature plasma lensing events known as echoes. These events are characterized by additional components in the pulse profile which are produced by additional images formed when the pulsar's radio emission is…

High Energy Astrophysical Phenomena · Physics 2026-05-27 Thierry Serafin Nadeau , Marten H. van Kerkwijk , Jing Luo , Robert Main , Kiyoshi W. Masui , James W. McKee , Ue-Li Pen

We experimentally demonstrate a simple configuration for mid-infrared (MIR) frequency comb generation in quasi-phase-matched lithium niobate waveguides using the cascaded-$\chi^{(2)}$ nonlinearity. With nanojoule-scale pulses from an…

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