Publications de Bahareh Ghadiani

Ultra small biomorphic cantilevers for high-speed atomic force microscopy

Atomic force microscopy (AFM) has long been recognized as a potent tool for capturing high-resolution topographical data across a wide spectrum of samples. However, this superior spatial imaging capability has traditionally been counterbalanced by its rela ...

EPFL2025

High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping

Santiago Harald Andany, Georg Fantner, Bahareh Ghadiani, Mustafa Kangül, Maartje Martina Cornelia Bastings, Cem Tekin, Veronika Cencen, Marcos Penedo Garcia

High-speed atomic force microscopy (HS-AFM) is a popular molecular imaging technique for visualizing single-molecule biological processes in real-time due to its ability to image under physiological conditions in liquid environments. The photothermal off-r ...

Journal Of Visualized Experiments2024

Blue-shift ultrasensitivity using rhombus-shaped plasmonic crystal on Si3N4 membrane

Dordaneh Etezadi, Mahdi Tamizifar, Bahareh Ghadiani, Yasaman Jahani, Foziyeh Sohrabi, Ershad Mohammadi

Harnessing ultrasensitivity from optical structures to detect tiny changes in the targeted samples is the main goal of scientists in the field of sensor design. In this study, an uncommon rhombus-shape plasmonic structure is proposed for providing blue-shi ...

OPTICAL SOC AMER2020

Ultralow-power chip-based soliton microcombs for photonic integration

Michail Zervas, Tobias Kippenberg, Martin Hubert Peter Pfeiffer, Maxim Karpov, Hairun Guo, Bahareh Ghadiani, Junqiu Liu, Arslan Sajid Raja, Nils Johan Engelsen, Anton Lukashchuk

Using the photonic Damascene reflow process, we present single soliton formation in 99-GHz-FSR Si3N4 microresonators of Q-factor exceeding 15 x 10(6), with less than 10 mW optical power. ...

IEEE2019

Ultralow-Power Photonic Chip-Based Soliton Frequency Combs

Michail Zervas, Tobias Kippenberg, Martin Hubert Peter Pfeiffer, Maxim Karpov, Hairun Guo, Bahareh Ghadiani, Junqiu Liu, Arslan Sajid Raja, Nils Johan Engelsen

The generation of dissipative Kerr solitons in optical microresonators allow compact high repetition rate frequency combs. A particularly promising platform is photonic integrated Si3N4 microresonators. Yet to date, soliton formation in Si3N4 microresonato ...

IEEE2018

Ultralow-power chip-based soliton microcombs for photonic integration

Michail Zervas, Tobias Kippenberg, Martin Hubert Peter Pfeiffer, Maxim Karpov, Hairun Guo, Bahareh Ghadiani, Junqiu Liu, Arslan Sajid Raja, Nils Johan Engelsen, Botao Du

The generation of dissipative Kerr solitons in optical microresonators has provided a route to compact frequency combs of high repetition rate, which have already been employed for optical frequency synthesizers, ultrafast ranging, coherent telecommunicati ...

OPTICAL SOC AMER2018

Ultra-smooth silicon nitride waveguides based on the Damascene reflow process: fabrication and loss origins

Tobias Kippenberg, Martin Hubert Peter Pfeiffer, Bahareh Ghadiani, Junqiu Liu, Arslan Sajid Raja

2018