168 citations · 253 across the 21 of their papers we have counts for
25 papers
Lasing Mode Control in ZnO Nanowires Coupled to TiO2 Nanopillars
Daniel Repp, Francesco Vitale, Raja Hoffmann +4
Nanowire lasers based on spectrally broad gain materials typically exhibit multimode emission, which limits their utility in applications requiring precisely defined spectral chara…
Spatiotemporal Metasurface for Ultrafast All-Optical Wavefront Shaping
Mert Akturk, Giulia Crotti, Andrea Schirato +6
Optical metasurfaces have established themselves as exceptional nanophotonic platforms to control the properties of light at subwavelength scales. By properly designing the geometr…
All-optical control of nonlinear emission from resonant metasurfaces
Ziwei Yang, Lei Xu, Gabriel Sanderson +11
Nonlinear optics underpins a broad range of photonic technologies, from classical and quantum light sources to emerging nonlinear photonic neural networks. Yet, conventional nonlin…
Second-harmonic generation for enhancing the performance of diffractive neural networks
Marie Braasch, Anna Kartashova, Elena Goi +3
Diffractive neural networks (DNNs) are an emerging approach for the realization of photonic artificial intelligence, especially due to their suitability for machine-vision applicat…
Enhancement of Circular Dichroism in Chiral Dielectric Metasurfaces by Ion Beam Irradiation
Anna Fitriana, Katsuya Tanaka, Lukas Raam Jaeger +4
Resonant chiral dielectric metasurfaces can support circular dichroism exceeding that of natural materials, but their small dissipative losses simultaneously limit the maximization…
Spatio-spectrally tailored multimode metasurface lasers in the visible range
Ayesheh Bashiri, Aleksandr Vaskin, Katsuya Tanaka +3
Spectrally engineered multifrequency nanolasers are highly desirable for on-chip photonics, multiplexed biosensing, and display technologies; yet, achieving them within a single co…
Inverse-Designed Superchiral Hot Spot in Dielectric Meta-Cavity Toward Ultra-Compact Enantioselective Detection
Anastasia Romashkina, Omer Yesilurt, Vahagn Mkhitaryan +8
Chiral nanophotonic structures have garnered considerable interest in recent years due to their potential to enhance the efficacy of chirality-sensitive biomolecular detection. Des…
Polarization Dependent Enhancement of Magnetic Dipolar Emission with Silicon Nanodimers
Marijn Rikers, Ayesheh Bashiri, Aleksandr Vaskin +5
Eu(TTA)3 complexes are used as an emission source in the presence of high refractive index dielectric nanostructures. These nanostructures support Mie-type resonances that modify t…
Tunable Resonant Metasurfaces Empowered by Atomically Thin Semiconductors
Alexey Ustinov, Ángela Barreda, Duk-Yong Choi +4
Nanophotonics has recently gained new momentum with the emergence of a novel class of nanophotonic systems consisting of resonant dielectric nanostructures integrated with single o…
Valley-dependent emission patterns enabled by plasmonic nanoantennas
Tobias Bucher, Jingshi Yan, Jan Sperrhake +12
Selective control over the emission pattern of valley-polarized excitons in monolayer transition metal dichalcogenides is crucial for developing novel valleytronic, quantum informa…
Holographic lasing with dielectric metasurfaces
Ayesheh Bashiri, Aleksandr Vaskin, Muyi Yang +4
Light-emitting metasurfaces provide a compact, integrated solution for simultaneous light generation and beam shaping, making them a promising candidate for advanced photonic appli…
Role of Coherence in Polarization Response of Hybrid Monolayer MoS-Gold Nanoparticle Systems
Laura Valencia Molina, Zlata Fedorova, Angela Barreda +12
Monolayers of transition metal dichacogenides show strong second-order nonlinearity and symmetry-driven selection rules from their three-fold lattice symmetry. This process resembl…
Inverse Microparticle Design for Enhanced Optical Trapping and Detection Efficiency in All Six Degrees of Freedom
Moosung Lee, Benjamin A. Stickler, Thomas Pertsch +1
Achieving quantum-limited motional control of optically trapped particles beyond the sub-micrometer scale is an outstanding problem in levitated optomechanics. A key obstacle is so…
Broadband bright biphotons from periodically poled triple-resonance metasurface
Jihua Zhang, Chaoxin Shi, Jinyong Ma +5
Biphotons from spontaneous parametric down conversion with broad bandwidth are highly wanted in many quantum technologies. However, achieving broad bandwidth in both frequency and…
Intrinsically chiral exciton polaritons in an atomically-thin semiconductor
Matthias J. Wurdack, Ivan Iorsh, Sarka Vavreckova +15
Photonic bound states in the continuum (BICs) have emerged as a versatile tool for enhancing light-matter interactions by strongly confining light fields. Chiral BICs are photonic…
Fabrication of low-loss lithium niobate on insulator waveguides on the wafer scale
Mohammadreza Younesi, Thomas Kasebier, Ilia Elmanov +8
We report on the wafer scale fabrication of single mode low-loss lithium niobate on insulator waveguides utilizing a chemically amplified resist and an optimized dry etching method…
Optical characterization of size- and substrate-dependent performance of ultraviolet hybrid plasmonic nanowire lasers
Francesco Vitale, Stephen A. Church, Daniel Repp +10
Nanowire-based plasmonic lasers are now established as nano-sources of coherent radiation, appearing as suitable candidates for integration into next-generation nanophotonic circui…
Directionally Tunable Co- and Counter-Propagating Photon Pairs from a Nonlinear Metasurface
Maximilian A. Weissflog, Jinyong Ma, Jihua Zhang +6
Nonlinear metasurfaces have recently been established as a new platform for generating photon pairs via spontaneous parametric down-conversion. While for classical harmonic generat…
Entangled Photon-pair Generation in Nonlinear Thin-films
Elkin A. Santos, Maximilian A. Weissflog, Thomas Pertsch +2
We develop a fully vectorial and non-paraxial formalism to describe spontaneous parametric down-conversion in nonlinear thin films. The formalism is capable of treating slabs with…
Influence of resonant plasmonic nanoparticles on optically accessing the valley degree of freedom in 2D semiconductors
Tobias Bucher, Zlata Fedorova, Mostafa Abasifard +10
The valley degree of freedom is one of the most intriguing properties of atomically thin transition metal dichalcogenides. Together with the possibility to address this degree of f…
Nonlocal quantum differentiation between polarization objects using entanglement
Vira R. Besaga, Luosha Zhang, Andres Vega +6
For a wide range of applications a fast, non-destructive, remote, and sensitive identification of samples with predefined characteristics is preferred instead of their full charact…
A Tunable Transition Metal Dichalcogenide Entangled Photon-Pair Source
Maximilian A. Weissflog, Anna Fedotova, Yilin Tang +16
Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such…
Ultrafast all-optical second harmonic wavefront shaping
A. Sinelnik, S. H. Lam, F. Coviello +6
Optical communication can be revolutionized by encoding data into the orbital angular momentum of light beams. However, state-of-the-art approaches for dynamic control of complex o…
Nonlinear Nanoresonators for Bell State Generation
Maximilian A. Weissflog, Romain Dezert, Vincent Vinel +6
Entangled photon states are a fundamental resource for optical quantum technologies and investigating the fundamental predictions of quantum mechanics. Up to now such states are ma…