5 papers
Molecular Tuning of Charge-Transfer Resonance in Plasmonic Nanocavities
Hasher Irshada, Francesco Ciccarello, Konstantin Malchow +2
Interfacial charge-transfer processes play a critical role in plasmon-enhanced spectroscopy, yet the energetic conditions governing charge-transfer resonance within molecule-metal…
Seeing inside a Plasmonic Nanogap: Few-molecule Orientation and Preferential Adsorption
Francesco Ciccarello, Nobuaki Oyamada, Thwahira Shirin Alampara +2
Molecule-surface interactions are central to many research and technological areas, spanning from heterogeneous catalysis and polymer science to electrochemistry. Of particular rel…
Mid-Infrared Modulation of Quantum Emitters in Hexagonal Boron Nitride
Karin Yamamura, Xinyang Yu, Chaohao Chen +3
Single photon emitters (SPEs) are promising building blocks for practical devices in quantum technologies. Traditionally, these systems are excited using off-resonant visible light…
Continuous-wave, high-resolution, ultra-broadband mid-infrared nonlinear spectroscopy with tunable plasmonic nanocavities
Zhiyuan Xie, Nobuaki Oyamada, Francesco Ciccarello +2
Vibrational sum- and difference-frequency generation (SFG and DFG) spectroscopy probes the nonlinear response of interfaces at mid-infrared (MIR) wavelengths while detecting upconv…
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…