9 papers · 1 filter
Fabrication-Aware Design of a Hybrid Metasurface-Bragg Mirror for Low-Noise Precision Optics
Mika Gaedtke, Christian Kranhold, Markus Walther +3
High-reflectivity coatings for precision interferometry must simultaneously minimize optical losses and thermally driven displacement noise. Dielectric Bragg mirrors provide robust…
Direct Wafer Bonding of Crystal-Ion-Sliced GaP Thin Films for Photonic Applications
Hossein Esfandiar, Emanuel Glück, Fabian Ganss +11
Gallium phosphide (GaP) is a promising material platform for integrated photonics because of its high refractive index, broad optical transparency, and strong second-order nonlinea…
Sparse Spectral Imaging for Thickness Mapping of 3R-MoS on PDMS
Benjamin Laudert, Fatemeh Abtahi, Sarka Vavreckova +2
We present a non-destructive, spatially resolved thickness characterization method for rhombohedral (3R) molybdenum disulfide (MoS) on polydimethylsiloxane (PDMS) substrates. U…
Inverse designed metasurfaces for multi-wavelength full-Stokes polarisation imaging
Sarah E. Dean, Neuton Li, Josephine Munro +7
Multispectral full-Stokes polarisation imaging has a broad range of applications, from biological cell imaging to agricultural remote surveying. For such applications, especially i…
Hybrid Barium Titanate Waveguide Designs For Efficient Nonlinear Frequency Conversion
Trevor G. Vrckovnik, D. Arslan, F. Eilenberger +1
Barium titanate (BaTiO) is emerging as a powerful integrated photonic material, combining strong and electro-optic nonlinearities with rapidly improving thin-film wav…
Stabilizing van der Waals NbOI2 by SiO2 encapsulation for Photonic Applications
Gia Quyet Ngo, Fatemeh Abtahi, Jakub Regner +6
Niobium oxide diiodide (NbOI2) is an emerging material for photonics and electronics, distinguished by its exceptional second-order nonlinearity and pronounced in-plane ferroelectr…
Thickness-dependence of Linear and Nonlinear Optical Properties of Multilayer 3R-MoS2
Fatemeh Abtahi, Alen Shaji, Gia Quyet Ngo +4
3R-MoS2, a MoS2 polytype with broken inversion symmetry, enables unique light-matter interactions and is promising for linear and nonlinear integrated photonics beyond the monolaye…
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…
Generation of polarization-entangled Bell states in monolithic photonic waveguides by leveraging intrinsic crystal properties
Trevor G. Vrckovnik, Dennis Arslan, Falk Eilenberger +1
Advanced photonic quantum technologies -- from quantum key distribution to quantum computing -- require on-chip sources of entangled photons that are both efficient and readily sca…