Personne
Ileana-Cristina Benea-Chelmus
Publications associées (10)
Hybrid silicon photonics for terahertz applications
This talk will highlight opportunities for terahertz science and technology from nonlinear integrated photonic circuits by exploring waveguides, resonators and terahertz antennas. Their present and future applications in metrology, emission and waveform co ...
Spie-Int Soc Optical Engineering2024Metasurface-stabilized optical microcavities
Cavities concentrate light and enhance its interaction with matter. Confining to microscopic volumes is necessary for many applications but space constraints in such cavities limit the design freedom. Here we demonstrate stable optical microcavities by cou ...
NATURE PORTFOLIO2023Resonators with tailored optical path by cascaded-mode conversions
Ileana-Cristina Benea-Chelmus, Marco Piccardo
Optical resonators enable the generation, manipulation, and storage of electromagnetic waves. The physics underlying their operation is determined by the interference of electromagnetic waves, giving rise to the resonance spectrum. This mechanism causes th ...
NATURE PORTFOLIO2023500 GHz field-resolved detection in thin-film lithium niobate devices
Ileana-Cristina Benea-Chelmus, Alessandro Tomasino
In this work, we show the coherent reconstruction of terahertz (THz) transients in thin-film lithium niobate integrated photonics circuits. Our devices modulate the intensity of a probe beam guided through a Mach-Zehnder interferometer (MZI) structure, und ...
New York2023Ultra-broadband terahertz radiation by supercontinuum generation and optical rectification in a dispersion-engineered waveguide: a numerical study
Ileana-Cristina Benea-Chelmus, Aleksei Gaier
In this work, we propose a numerical approach based on forward coupled mode modeling to simultaneously evaluate second- and third-order nonlinearities inside a dispersion-engineered waveguide towards the goal of generating broadband terahertz (THz) radiati ...
New York2023Tunable pump compression and fast modulation for pulsed THz generation
Ileana-Cristina Benea-Chelmus, Alessandro Tomasino, Yazan Lampert Almahmoud, Shima Rajabali
We demonstrate tunable dispersion compensation of femtosecond pulses at telecom wavelengths for broadband Terahertz generation in 7.5-meter fiber link using a Silicon prism pair. The prism pair enhances the amplitude of the THz E-field in InGaAs photocondu ...
New York2023Terahertz waveform synthesis in integrated thin-film lithium niobate platform
Ileana-Cristina Benea-Chelmus, Jérôme Faist, Francesca Fabiana Settembrini
Bridging the "terahertz gap" relies upon synthesizing arbitrary waveforms in the terahertz domain enabling applications that require both narrow band sources for sensing and few-cycle drives for classical and quantum objects. However, realization of custom ...
Berlin2023Gigahertz free-space electro-optic modulators based on Mie resonances
Ileana-Cristina Benea-Chelmus, Sydney Rebecca Mason
Electro-optic modulators are essential for sensing, metrology and telecommunications. Most target fiber applications. Instead, metasurface-based architectures that modulate free-space light at gigahertz (GHz) speeds can boost flat optics technology by micr ...
NATURE PORTFOLIO2022Integrated photonic circuits for terahertz applications
This talk will discuss recent advances in the nascent field of integrated photonic circuits for terahertz applications. This field explores photonic circuit technology to create miniaturized terahertz emitters and detectors by non-linear optical processes ...
IEEE2022Design of a low-loss hybrid silicon-organic terahertz field detector
Ileana-Cristina Benea-Chelmus, Alessandro Tomasino, Francesco Bertot
We propose an innovative design for an integrated, low-loss on-chip terahertz (THz) field detector based on hybrid silicon-organic slot waveguides and THz antennas. We perform a numerical study of the dependency of electro-optic interaction on geometrical ...
IEEE2022