Publications related to Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators

High-Quality Data Enabling Universality of Band Gap Descriptor and Discovery of Photovoltaic Perovskites

Alfredo Pasquarello, Haiyuan Wang, Wei Chen

Extensive machine-learning-assisted research has been dedicated to predicting band gaps for perovskites, driven by their immense potential in photovoltaics. Yet, the effectiveness is often hampered by the lack of high-quality band gap data sets, particular ...

Amer Chemical Soc2024

Chip-Scale Watt-Range Terahertz Generation Based on Fast Transition in Nanoplasma Switches

Elison de Nazareth Matioli, Mohammad Rezaei

Despite recent advancements in photonics and electronics, there remains a lack of efficient, compact, high-power sources in the terahertz spectrum (0.3-10 THz). Recent research has revealed that nanoplasma (NP) switches can exhibit extremely fast transitio ...

2024

Ultra-broadband terahertz radiation by supercontinuum generation and optical rectification in a dispersion-engineered waveguide: a numerical study

Ileana-Cristina Benea-Chelmus, Aleksei Gaier

In this work, we propose a numerical approach based on forward coupled mode modeling to simultaneously evaluate second- and third-order nonlinearities inside a dispersion-engineered waveguide towards the goal of generating broadband terahertz (THz) radiati ...

New York2023

Generation and control of localized terahertz fields in photoemitted electron plasmas

Fabrizio Carbone, Giovanni Maria Vanacore, Ivan Madan, Ido Kaminer, Simone Gargiulo, Francesco Barantani

Dense micron-sized electron plasmas, such as those generated upon irradiation of nanostructured metallic surfaces by intense femtosecond laser pulses, constitute a rich playground to study light-matter interactions, many-body phenomena, and out-of-equilibr ...

ROYAL SOC CHEMISTRY2023

500 GHz field-resolved detection in thin-film lithium niobate devices

Ileana-Cristina Benea-Chelmus, Alessandro Tomasino

In this work, we show the coherent reconstruction of terahertz (THz) transients in thin-film lithium niobate integrated photonics circuits. Our devices modulate the intensity of a probe beam guided through a Mach-Zehnder interferometer (MZI) structure, und ...

New York2023

THz characterization of GeSn monocrystalline thin films

Anna Fontcuberta i Morral, Andrea Giunto, Nicolas Philippe Laurent Humblot

The employment of other group IV materials, such as alloys of germanium and tin, poses a solution for overcoming the efficiency limit of silicon that arises from its indirect bandgap. By using THz spectroscopy, the optoelectronic properties, such as conduc ...

IEEE2022

Statics and dynamics of multivalley charge density waves in Sb (111)

Davide Campi, Daniele Dragoni

Charge density waves (CDWs), periodic modulations of the charge density, are among the most abundant and non-trivial ordered phases in condensed matter. Here we demonstrate the occurrence of multi-valley charge density waves (MV-CDW) on the semimetal Sb(11 ...

Springer2019

Subcycle Extreme Nonlinearities in GaP Induced by an Ultrastrong Terahertz Field

Christoph Peter Hauri, Mostafa Shalaby

We report on the experimental observation of extreme laser spectral broadening and a change in optical transmission in gallium phosphite induced by 25 MV/cm terahertz (THz) single-cycle internal field. Such intense THz radiation leads to twofold transient ...

American Physical Society2017

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Manifestation of a Second Dirac Surface State and Bulk Bands in THz Radiation from Topological Insulators

High-Quality Data Enabling Universality of Band Gap Descriptor and Discovery of Photovoltaic Perovskites

Chip-Scale Watt-Range Terahertz Generation Based on Fast Transition in Nanoplasma Switches

Ultra-broadband terahertz radiation by supercontinuum generation and optical rectification in a dispersion-engineered waveguide: a numerical study

Generation and control of localized terahertz fields in photoemitted electron plasmas

500 GHz field-resolved detection in thin-film lithium niobate devices

THz characterization of GeSn monocrystalline thin films

Experimental studies of the equilibrium and out-of-equilibrium electronic structure of non-symmorphic topological materials

Statics and dynamics of multivalley charge density waves in Sb (111)

Charge-carrier Dynamics in Metal Oxides and Hybrid Lead Perovskites investigated by Time-Resolved UV and X-ray Spectroscopy

Subcycle Extreme Nonlinearities in GaP Induced by an Ultrastrong Terahertz Field

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Chat with Graph Search

Generation and control of localized terahertz fields in photoemitted electron plasmas

500 GHz field-resolved detection in thin-film lithium niobate devices

High-Quality Data Enabling Universality of Band Gap Descriptor and Discovery of Photovoltaic Perovskites

Ultra-broadband terahertz radiation by supercontinuum generation and optical rectification in a dispersion-engineered waveguide: a numerical study

THz characterization of GeSn monocrystalline thin films

Experimental studies of the equilibrium and out-of-equilibrium electronic structure of non-symmorphic topological materials

Chip-Scale Watt-Range Terahertz Generation Based on Fast Transition in Nanoplasma Switches

Subcycle Extreme Nonlinearities in GaP Induced by an Ultrastrong Terahertz Field

Statics and dynamics of multivalley charge density waves in Sb (111)

Charge-carrier Dynamics in Metal Oxides and Hybrid Lead Perovskites investigated by Time-Resolved UV and X-ray Spectroscopy