Marc Jankowski
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View article: Arbitrary control over multimode wave propagation for machine learning
Arbitrary control over multimode wave propagation for machine learning Open
Controlled multimode wave propagation can enable more space-efficient photonic processors than architectures based on discrete components connected by single-mode waveguides. Instead of defining discrete elements, one can sculpt the contin…
View article: Design and function of a vertical micro-cavity optical parametric oscillator
Design and function of a vertical micro-cavity optical parametric oscillator Open
Optical parametric oscillators (OPOs) have emerged as highly versatile platforms for signal processing, machine learning, and all-optical computation. In particular, integrated photonic circuits have demonstrated an efficient and scalable …
View article: Data repository of "Arbitrary control over multimode wave propagation for machine learning"
Data repository of "Arbitrary control over multimode wave propagation for machine learning" Open
This repository contains information necessary to reproduce the results of our paper "Arbitrary control over multimode wave propagation for machine learning" (Nature Physics) (arXiv). The repository contains both the data required to gener…
View article: Arbitrarily programmable wave propagation on a photonic chip
Arbitrarily programmable wave propagation on a photonic chip Open
On-chip photonic-neural-network processors promise benefits in both speed and energy efficiency but have not yet reached the scale to compete with electronic processors. The dominant paradigm is to build integrated-photonic processors usin…
View article: Hybrid AM/FM Mode-Locking of Singly-Resonant OPOs
Hybrid AM/FM Mode-Locking of Singly-Resonant OPOs Open
We investigate a new mode-locking regime in the singly-resonant OPO employing simultaneous amplitude- and frequency-modulation of the intracavity field. This OPO exhibits deterministic, "turn-key" formation of a stable, broadband, chirped …
View article: Mesoscopic ultrafast nonlinear optics—the emergence of multimode quantum non-Gaussian physics
Mesoscopic ultrafast nonlinear optics—the emergence of multimode quantum non-Gaussian physics Open
Over the last few decades, nonlinear optics has become significantly more nonlinear, traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear nanophotonics in particular emerging as a frontier for combinin…
View article: Surface modification and coherence in lithium niobate SAW resonators
Surface modification and coherence in lithium niobate SAW resonators Open
Lithium niobate is a promising material for developing quantum acoustic technologies due to its strong piezoelectric effect and availability in the form of crystalline thin films of high quality. However, at radio frequencies and cryogenic…
View article: Picojoule-level supercontinuum generation in thin-film lithium niobate on sapphire
Picojoule-level supercontinuum generation in thin-film lithium niobate on sapphire Open
We demonstrate ultraviolet-to-mid-infrared supercontinuum generation (SCG) inside thin-film lithium niobate (TFLN) on sapphire nanowaveguides. This platform combines wavelength-scale confinement and quasi-phasematched nonlinear interaction…
View article: General framework for ultrafast nonlinear photonics: unifying single and multi-envelope treatments [Invited]
General framework for ultrafast nonlinear photonics: unifying single and multi-envelope treatments [Invited] Open
Numerical modeling of ultrashort pulse propagation is important for designing and understanding the underlying dynamical processes in devices that take advantage of highly nonlinear interactions in dispersion-engineered optical waveguides.…
View article: Picojoule-level supercontinuum generation in thin-film lithium niobate on sapphire
Picojoule-level supercontinuum generation in thin-film lithium niobate on sapphire Open
We demonstrate ultraviolet-to-mid-infrared supercontinuum generation (SCG) inside thin-film lithium niobate (TFLN) on sapphire nanowaveguides. This platform combines wavelength-scale confinement and quasi-phasematched nonlinear interaction…
View article: Ultrafast second-order nonlinear photonics -- from classical physics to non-Gaussian quantum dynamics
Ultrafast second-order nonlinear photonics -- from classical physics to non-Gaussian quantum dynamics Open
Photonic integrated circuits with second-order ($χ^{(2)}$) nonlinearities are rapidly scaling to remarkably low powers. At this time, state-of-the-art devices achieve saturated nonlinear interactions with thousands of photons when driven b…
View article: Efficient parametric down-conversion by gain-trapped solitons
Efficient parametric down-conversion by gain-trapped solitons Open
Optical parametric amplification is one of the most flexible approaches for generating coherent light at long wavelengths, but typical implementations require prohibitively large pump pulse energies to realize useful amounts of gain. In th…
View article: A Fully Programmable On-Chip Planar Waveguide for Machine Learning
A Fully Programmable On-Chip Planar Waveguide for Machine Learning Open
We introduce a device containing a planar waveguide whose spatial refractive index profile n ( x , z ) can be programmed in real time. We demonstrate use this device as an optical neural network.
View article: Mesoscopic ultrafast nonlinear optics -- The emergence of multimode quantum non-Gaussian physics
Mesoscopic ultrafast nonlinear optics -- The emergence of multimode quantum non-Gaussian physics Open
Over the last few decades, nonlinear optics has become significantly more nonlinear, traversing nearly a billionfold improvement in energy efficiency, with ultrafast nonlinear nanophotonics in particular emerging as a frontier for combinin…
View article: Supercontinuum generation by saturated second-order nonlinear interactions
Supercontinuum generation by saturated second-order nonlinear interactions Open
We propose a new approach to supercontinuum generation and carrier-envelope-offset detection based on saturated second-order nonlinear interactions in dispersion-engineered nanowaveguides. The technique developed here broadens the interact…
View article: Mid-infrared spectroscopy with a broadly tunable thin-film lithium niobate optical parametric oscillator
Mid-infrared spectroscopy with a broadly tunable thin-film lithium niobate optical parametric oscillator Open
Mid-infrared spectroscopy, an important technique for sensing molecules, has encountered barriers from sources either limited in tuning range or excessively bulky for widespread use. We present a compact, efficient, and broadly tunable opt…
View article: Data for: Integrated frequency-modulated optical parametric oscillator
Data for: Integrated frequency-modulated optical parametric oscillator Open
This dataset contains the data presented in the Figures of the paper Integrated frequency-modulated optical parametric oscillator.
View article: Integrated frequency-modulated optical parametric oscillator
Integrated frequency-modulated optical parametric oscillator Open
Optical frequency combs have revolutionized precision measurement, time-keeping, and molecular spectroscopy.1-5 A substantial effort has developed around ``microcombs'': integrating comb-generating technologies into compact, reliable photo…
View article: Quantum noise dynamics in nonlinear pulse propagation
Quantum noise dynamics in nonlinear pulse propagation Open
The propagation of ultrafast pulses in dispersion-engineered waveguides, exhibiting strong field confinement in both space and time, is a promising avenue towards single-photon nonlinearities in an all-optical platform. However, quantum en…
View article: Mid-infrared spectroscopy with a broadly tunable thin-film lithium niobate optical parametric oscillator
Mid-infrared spectroscopy with a broadly tunable thin-film lithium niobate optical parametric oscillator Open
Mid-infrared spectroscopy, an important and widespread technique for sensing molecules, has encountered barriers stemming from sources either limited in tuning range or excessively bulky for practical field use. We present a compact, effic…
View article: Integrated frequency-modulated optical parametric oscillator
Integrated frequency-modulated optical parametric oscillator Open
Optical frequency combs have revolutionized precision measurement, time-keeping, and molecular spectroscopy. A substantial effort has developed around "microcombs": integrating comb-generating technologies into compact, reliable photonic p…
View article: Surface Modification and Coherence in Lithium Niobate SAW Resonators
Surface Modification and Coherence in Lithium Niobate SAW Resonators Open
Lithium niobate is a promising material for developing quantum acoustic technologies due to its strong piezoelectric effect and availability in the form of crystalline thin films of high quality. However, at radio frequencies and cryogenic…
View article: Monolithically integrated femtosecond optical parametric oscillators
Monolithically integrated femtosecond optical parametric oscillators Open
Synchronously pumped optical parametric oscillators (OPOs) are highly efficient sources of long-wavelength pulses and nonclassical light, making them invaluable for applications in spectroscopy, metrology, multi-photon microscopy, and quan…
View article: Degenerate optical parametric amplification in CMOS silicon
Degenerate optical parametric amplification in CMOS silicon Open
Silicon is a common material for photonics due to its favorable optical properties in the telecom and mid-wave IR bands, as well as compatibility with a wide range of complementary metal–oxide semiconductor (CMOS) foundry processes. Crysta…
View article: Temporal trapping: a route to strong coupling and deterministic optical quantum computation
Temporal trapping: a route to strong coupling and deterministic optical quantum computation Open
The realization of deterministic photon–photon gates is a central goal in optical quantum computation and engineering. A longstanding challenge is that optical nonlinearities in scalable, room-temperature material platforms are too weak to…
View article: Ultra-broadband mid-infrared generation in dispersion-engineered thin-film lithium niobate
Ultra-broadband mid-infrared generation in dispersion-engineered thin-film lithium niobate Open
Thin-film lithium niobate (TFLN) is an emerging platform for compact, low-power nonlinear-optical devices, and has been used extensively for near-infrared frequency conversion. Recent work has extended these devices to mid-infrared wavelen…
View article: Degenerate optical parametric amplification in CMOS silicon
Degenerate optical parametric amplification in CMOS silicon Open
Silicon is a common material for photonics due to its favorable optical properties in the telecom and mid-wave IR bands, as well as compatibility with a wide range of complementary metal-oxide semiconductor (CMOS) foundry processes. Crysta…