202 citations · 225 across the 12 of their papers we have counts for
13 papers
Infrared light scattering and emission from epsilon near-zero hyperbolic phonon-polaritons in two-dimensional crystals
Flavio Henrique Feres, Martin Bearzatto, Adrien Debacq +24
This work presents the near-field super-scattering and the near-field thermal emission from 2D hyperbolic crystals as general optical phenomena that link near-field nanophotonics t…
Light-induced effective magnetic fields in Landau quantized graphene
Hiroki Ueda, Alexej Pashkin, Ece Uykur +6
Ultrafast magnetism triggered by circularly polarized radiation underpins ultrafast spin control, relevant to future technologies, e.g., opto-spintronics and magnonics. The dynamic…
Cavity-enhanced superconducting response in an underdoped cuprate
Angela Montanaro, Vadim Plastovets, Nitesh Khatiwada +15
Superconductors carry electrical current without resistance when paired electrons condense into a coherent macroscopic quantum state. In underdoped cuprates, evidence suggests that…
Revisiting the symmetry and optical phonons of altermagnetic -MnTe
Ece Uykur, Marcos V. Gonçalves-Faria, Sahana Rößler +5
Using infrared (IR) and Raman spectroscopies combined with high-resolution x-ray diffraction, we address several controversial aspects of altermagnetic -MnTe. We show that mecha…
Structural and Optical Properties of Crystal Ion Sliced BaTiO Thin Films
Hossein Esfandiar, Fatemeh Abtahi, Trevor G. Vrckovnik +10
Barium titanate (BaTiO) is a compelling material for integrated photonics due to its strong electro-optic and second-order nonlinear properties. Crystal Ion Slicing (CIS) prese…
THz carrier dynamics in interface two-dimensional electron gases
Ahana Bhattacharya, Andri Darmawan, Jeong Woo Han +10
A two-dimensional electron gas (2DEG) forms at the interface of complex oxides like (STO) and (LTO), despite each material having a low native conductivity,…
Extreme Terahertz Nonlinearity of AlGaN/GaN-based Grating-Gate Plasmonic Crystals
Pavlo Sai, Vadym V. Korotyeyev, Dmytro B. But +12
We present a novel approach to enhance THz nonlinearity by the resonant excitation of two-dimensional plasmons in grating-gate plasmonic crystals. Using a high-electric-field THz p…
High-pressure modulation of breathing kagome lattice: Cascade of Lifshitz transitions and evolution of the electronic structure
Marcos V. Gonçalves-Faria, Maxim Wenzel, Yuk Tai Chan +12
The interplay between electronic correlations, density wave orders, and magnetism gives rise to several fascinating phenomena. In recent years, kagome metals have emerged as an exc…
Simple THz phase retarder based on Mach-Zehnder interferometer for polarization control
Hiroki Ueda, Alexej Pashkin, Ece Uykur +2
On-demand polarization control of electromagnetic waves is the fundamental element of modern optics. Its interest has recently been expanded in the terahertz (THz) range for cohere…
Highly efficient broadband THz upconversion with Dirac materials
Tatiana A. Uaman Svetikova, Igor Ilyakov, Alexey Ponomaryov +16
The use of the THz frequency domain in future network generations offers an unparalleled level of capacity, which can enhance innovative applications in wireless communication, ana…
Coherent phonon and unconventional carriers in the magnetic kagome metal FeSn
M. V. Gonçalves-Faria, A. Pashkin, Q. Wang +5
Temperature- and fluence-dependent carrier dynamics of the magnetic Kagome metal FeSn were studied using the ultrafast optical pump-probe technique. Two carrier relaxation…
Terahertz control of photoluminescence emission in few-layer InSe
Tommaso Venanzi, Malte Selig, Alexej Pashkin +11
A promising route for the development of opto-elelctronic technology is to use terahertz radiation to modulate the optical properties of semiconductors. Here we demonstrate the dyn…
Ultrabroadband single-cycle terahertz pulses with peak fields of 300 kV cm from a metallic spintronic emitter
T. Seifert, S. Jaiswal, M. Sajadi +5
To explore the capabilities of metallic spintronic thin-film stacks as a source of intense and broadband terahertz electromagnetic fields, we excite a W/CoFeB/Pt trilayer on a larg…