Giulio Cerullo
YOU?
Author Swipe
View article: Electrically tunable ultrafast dynamics and interactions of hybrid excitons in a 2D semiconductor bilayer
Electrically tunable ultrafast dynamics and interactions of hybrid excitons in a 2D semiconductor bilayer Open
Extended efforts have been devoted to the study of strongly-interacting excitons and their dynamics, towards macroscopic quantum states of matter such as Bose-Einstein condensates of excitons and polaritons. Momentum-direct layer-hybridize…
View article: Broadband ultrafast self-heterodyned chiro-optical spectroscopy
Broadband ultrafast self-heterodyned chiro-optical spectroscopy Open
Ultrafast chiro-optical spectroscopy provides unique access to the structural dynamics of molecules, spin-valley relaxation in semiconductors, and the non-equilibrium optical response of chiral nanophotonic systems. Yet, because chiral sig…
View article: Broadband ultrafast self-heterodyned chiro-optical spectroscopy
Broadband ultrafast self-heterodyned chiro-optical spectroscopy Open
Ultrafast chiro-optical spectroscopy provides unique access to the structural dynamics of molecules, spin-valley relaxation in semiconductors, and the nonequilibrium optical response of chiral nanophotonic systems and metasurfaces. Yet, be…
View article: Spin injection and emission helicity switching in a 2D perovskite/WSe2 heterostructure
Spin injection and emission helicity switching in a 2D perovskite/WSe2 heterostructure Open
The initialization and control of a long-lived spin population in lead halide perovskites are prerequisites for their use in spintronic applications. Here, we demonstrate circular polarization of the interlayer exciton emission in a (BA)2P…
View article: Ultrafast dynamics of coherent exciton-polaritons in van der Waals semiconductor metasurfaces
Ultrafast dynamics of coherent exciton-polaritons in van der Waals semiconductor metasurfaces Open
Enabling coherent light-matter interactions is a critical step toward next-generation quantum technologies. However, achieving this under ambient temperature conditions remains challenging due to rapid dephasing in optically excited system…
View article: Electrically tunable ultrafast dynamics and interactions of hybrid excitons in a 2D semiconductor bilayer
Electrically tunable ultrafast dynamics and interactions of hybrid excitons in a 2D semiconductor bilayer Open
Extended efforts have been devoted to the study of strongly-interacting excitons and their dynamics, towards macroscopic quantum states of matter such as Bose-Einstein condensates of excitons and polaritons. Momentum-direct layer-hybridize…
View article: A thermal infrared hyperspectral camera based on a birefringent interferometer
A thermal infrared hyperspectral camera based on a birefringent interferometer Open
We present a compact hyperspectral camera based on the Fourier-transform approach working in the thermal infrared (TIR) spectral region. The system is based on a common-path birefringent interferometer, made with the TIR transparent materi…
View article: Correlated-photon time- and frequency-resolved optical spectroscopy
Correlated-photon time- and frequency-resolved optical spectroscopy Open
Classical time-resolved optical spectroscopy experiments are performed using sequences of ultrashort light pulses, with photon fluxes incident on the sample which are many orders of magnitude higher than real-world conditions corresponding…
View article: Engineering macrophage responses through 3D scaffold microarchitecture
Engineering macrophage responses through 3D scaffold microarchitecture Open
View article: Cation Tuning of Polaron Barriers in Layered Perovskites for Optical Spin Lifetime Control
Cation Tuning of Polaron Barriers in Layered Perovskites for Optical Spin Lifetime Control Open
Layered metal-halide perovskites (L-MHPs) form self-assembled quantum wells with strongly bound excitons and electron-phonon interactions that promote polaron formation. Due to spin-orbit coupling and Rashba-type spin-splitting of the elec…
View article: Roadmap for Photonics with 2D Materials
Roadmap for Photonics with 2D Materials Open
Triggered by advances in atomic-layer exfoliation and growth techniques, along with the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or a few atomic layers, two-dimensional (2…
View article: Dissecting intervalley coupling mechanisms in monolayer transition metal dichalcogenides
Dissecting intervalley coupling mechanisms in monolayer transition metal dichalcogenides Open
Monolayer (1L) transition metal dichalcogenides (TMDs) provide a unique opportunity to control the valley degree of freedom of optically excited charge carriers due to the spin-valley locking effect. Despite extensive studies of the valley…
View article: Engineering macrophage responses through 3D scaffold microarchitecture
Engineering macrophage responses through 3D scaffold microarchitecture Open
Biomaterial implantation in living organisms triggers a physiological response known as foreign body reaction, leading to the recruitment of macrophages, that can polarize either into a pro-inflammatory (M1) or an anti-inflammatory (M2) ph…
View article: Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors
Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors Open
View article: Mapping the spatial and spectral modes of downconverted photons in angle phase-matched nonlinear crystals
Mapping the spatial and spectral modes of downconverted photons in angle phase-matched nonlinear crystals Open
Spontaneous Parametric Down-Conversion (SPDC) is key to generating broadband spectrally entangled photons for quantum optical spectroscopy. Here we use a a common-path birefringent interferometer to experimentally map the spatial-spectral …
View article: Mapping the spatial and spectral modes of downconverted photons in angle phase-matched nonlinear crystals
Mapping the spatial and spectral modes of downconverted photons in angle phase-matched nonlinear crystals Open
Spontaneous Parametric Down-Conversion (SPDC) is key to generating broadband spectrally entangled photons for quantum optical spectroscopy. Here we use a a common-path birefringent interferometer to experimentally map the spatial-spectral …
View article: Characterization of the hemithioindigo photoswitch and its derivatives with x-ray photoabsorption and photoemission spectroscopies
Characterization of the hemithioindigo photoswitch and its derivatives with x-ray photoabsorption and photoemission spectroscopies Open
In this study, we investigate the electronic structure of hemithioindigo–hemistilbene (HTI) photoswitches and their functionalized derivatives, HTI-OMe and HTI-SMe, using x-ray photoemission spectroscopy (XPS) and near-edge x-ray absorptio…
View article: Data regarding the manuscript: Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors
Data regarding the manuscript: Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors Open
Ultrafast all-optical logic devices based on nonlinear light-matter interactions hold the promise to overcome the speed limitations of conventional electronic devices. Strong coupling of excitons and photons inside an optical resonator enh…
View article: Broadband Fourier transform spectroscopy of quantum emitters photoluminescence with sub-nanosecond temporal resolution
Broadband Fourier transform spectroscopy of quantum emitters photoluminescence with sub-nanosecond temporal resolution Open
The spectral characterization of quantum emitter luminescence over broad wavelength ranges and fast time scales is important for applications ranging from biophysics to quantum technologies. Here we present the application of time-domain F…
View article: Phonon dephasing times determined with time-delayed, broadband CARS
Phonon dephasing times determined with time-delayed, broadband CARS Open
Coherent Raman scattering techniques as coherent anti-Stokes Raman scattering (CARS), offer significant advantages in terms of pixel dwell times and speed as compared to spontaneous Raman scattering for investigations of crystalline materi…
View article: Visualizing hot carrier dynamics by nonlinear optical spectroscopy at the atomic length scale
Visualizing hot carrier dynamics by nonlinear optical spectroscopy at the atomic length scale Open
Probing and manipulating the spatiotemporal dynamics of hot carriers in nanoscale metals is crucial to a plethora of applications ranging from nonlinear nanophotonics to single-molecule photochemistry. The direct investigation of these hig…
View article: Time‐Domain Visualization of Electron‐Phonon Coupling in Nanographenes
Time‐Domain Visualization of Electron‐Phonon Coupling in Nanographenes Open
Coherent molecular vibrations determine many molecular properties like intersystem crossing or intramolecular charge transfer, holding potential for developing systems with vibrationally controlled electronic dynamics and reactivity. Resea…
View article: Entangled-photon time- and frequency-resolved optical spectroscopy
Entangled-photon time- and frequency-resolved optical spectroscopy Open
Classical time-resolved optical spectroscopy experiments are performed using sequences of ultrashort light pulses, with photon fluxes incident on the sample which are many orders of magnitude higher than real-world conditions corresponding…
View article: Ultrafast Dynamics of Rydberg Excitons and Their Optically Induced Charged Complexes in Encapsulated WSe<sub>2</sub> Monolayers
Ultrafast Dynamics of Rydberg Excitons and Their Optically Induced Charged Complexes in Encapsulated WSe<sub>2</sub> Monolayers Open
Quantum confinement and reduced dielectric screening lead to strong excitonic effects in atomically thin transition metal dichalcogenides (TMDs). Encapsulation of TMD monolayers in hexagonal boron nitride (hBN) unveils the excitonic Rydber…
View article: Fast Detection and Classification of Microplastics by a Wide-Field Fourier Transform Raman Microscope
Fast Detection and Classification of Microplastics by a Wide-Field Fourier Transform Raman Microscope Open
A number of applications require methods to detect with high spatial resolution and chemical specificity microplastics (MPs) extracted from different matrices. Here we introduce a wide-field hyperspectral Fourier transform Raman microscope…
View article: Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors
Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors Open
Ultrafast all-optical logic devices based on nonlinear light-matter interactions hold the promise to overcome the speed limitations of conventional electronic devices. Strong coupling of excitons and photons inside an optical resonator enh…
View article: Wireframe holography as a method for augmented reality projections
Wireframe holography as a method for augmented reality projections Open
Computer-generated holography (CGH) faces challenges related to high computational demands and speckle noise that degrade image quality. This paper presents "wireframe holography", a method that builds upon point-cloud techniques by using …
View article: Photo-generated charge-transfer excitons in NiO revealed by ultrafast time-resolved resonant inelastic x-ray scattering
Photo-generated charge-transfer excitons in NiO revealed by ultrafast time-resolved resonant inelastic x-ray scattering Open
Strong electronic correlation can lead to insulating behavior and to the opening of large optical gaps, even in materials with partly filled valence shells. Although the non-equilibrium optical response encodes both local (quasi atomic) an…
View article: Broadband Fourier transform spectroscopy of quantum emitters photoluminescence with sub-nanosecond temporal resolution
Broadband Fourier transform spectroscopy of quantum emitters photoluminescence with sub-nanosecond temporal resolution Open
The spectral characterization of quantum emitter luminescence over broad wavelength ranges and fast timescales is important for applications ranging from biophysics to quantum technologies. Here we present the application of time-domain Fo…
View article: Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced <em>In Vivo</em> Imaging
Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced <em>In Vivo</em> Imaging Open
In the context of biomaterials and drug testing in animal models, this study presents a streamlined protocol for fabricating a novel implantable integrated imaging window. The micro-device comprises a sophisticated system of microlenses co…