9 papers
Metaphotonic Catalysis: Amorphous silicon metasurfaces encode photochemical activity
Elif Nur Dayi, Priscila Vensaus, Milad Sabzehparvar +3
Solar-to-fuel conversion can benefit from photoelectrodes with engineered light-matter interactions, yet most nanostructured designs provide limited control over the spatial and sp…
Determining Electron Beam Lateral Coherence in a Scanning Electron Microscope Using Electron Diffraction
Evelijn Akerboom, Fatemeh Kiani, Giulia Tagliabue +4
We develop and characterize scanning transmission electron microscopy (STEM) capabilities within a scanning electron microscope (SEM) to investigate the effective lateral coherence…
Plasmon Induced Delocalized Second-Harmonic Generation Towards Buried-Interface Spectroscopy
Alan R. Bowman, Sergejs Boroviks, Omer Can Karaman +3
Second-harmonic generation microscopy is a powerful technique capable of probing local crystal symmetries and electric fields at interfaces. However, it often suffers from weak sig…
All-Dielectric Photo-thermo-optical Metasurfaces for Thermal Landscaping at the Nanoscale
Gopal Narmada Naidu, Omer Can Karaman, Giulia Tagliabue
Precise control of temperature fields at the micro- and nanoscale is essential for emerging applications in nanophotonics, catalysis, and microfluidics, yet remains difficult due t…
Photo-Thermally Tunable Photon-Pair Generation in Dielectric Metasurfaces
Omer Can Karaman, Hua Li, Elif Nur Dayi +2
Photon-pair sources based on spontaneous four-wave mixing (SFWM) in integrated photonics are often spectrally static. We demonstrate and model a fundamental thermo-optical mechanis…
Cross-polarized and Stable Second Harmonic Generation from Monocrystalline Copper
Elif Nur Dayi, Alan R. Bowman, Omer Can Karaman +2
Second-harmonic generation (SHG) is a powerful surface-specific probe for centrosymmetric materials, with broad relevance to energy and biological interfaces. Plasmonic nanomateria…