A5073049729- Transition Metal Oxide Nanomaterials
- Porphyrin and Phthalocyanine Chemistry
- Magnetism in coordination complexes
- Graphene research and applications
- Carbon Nanotubes in Composites
- Advanced Chemical Physics Studies
- Gas Sensing Nanomaterials and Sensors
- 2D Materials and Applications
- Acoustic Wave Resonator Technologies
- Electronic and Structural Properties of Oxides
- Terahertz technology and applications
- Diamond and Carbon-based Materials Research
- Photosynthetic Processes and Mechanisms
- Photoacoustic and Ultrasonic Imaging
- Force Microscopy Techniques and Applications
- Mechanical and Optical Resonators
- Spectroscopy and Quantum Chemical Studies
- Spectroscopy and Laser Applications
- Spectroscopy Techniques in Biomedical and Chemical Research
Université de Rennes
2022-2024
Institut de Physique de Rennes
2021-2024
Centre National de la Recherche Scientifique
2022-2024
The University of Tokyo
2022-2024
Université Rennes 2
2024
Abstract Electron transfer is a fundamental energy conversion process widely present in synthetic, industrial, and natural systems. Understanding the electron important to exploit uniqueness of low-dimensional van der Waals (vdW) heterostructures because interlayer produces function this class material. Here, we show occurrence an one-dimensional layer-stacking carbon nanotubes (CNTs) boron nitride (BNNTs). This observation makes use femtosecond broadband optical spectroscopy, ultrafast...
Improving the efficiency of photothermal (PT) therapies and photoacoustic (PA) imaging at microscopic scale hinges on developing multiphoton-absorbing molecules or contrast agents that operate in near-infrared (NIR) range. These advanced will enable excitation with NIR lasers, an improved transparency range for biological tissues, while enabling minute, highly localized spatial control area. However, progress this field requires innovative experimental techniques to characterize effects...
We study by femtosecond infrared spectroscopy the ultrafast and persistent photoinduced phase transition of Rb
Nowadays, materials science is moving towards the understanding and control of in nonequilibrium states by making use perturbative techniques to investigate their dynamical responses. From this perspective, ultrashort light pulses seems be a relevant approach as it can selectively address different degrees freedom solid-state systems more particularly electrons. Such method help decipher physical phenomena arising from electronic correlations complements conventional methodology where phase...
Triggering new stable macroscopic orders in materials by ultrafast optical or terahertz pump pulses is a difficult challenge, complicated the interplay between multiscale microscopic mechanisms, and excitation profiles samples. In particular, differences two types of excitations are still unclear. this article, we compare response on acoustic timescale V2O3 Paramagnetic Metallic (PM) thin film excited (THz) an pump, at room temperature. We show that penetration depth deposited energy has...
Abstract We study by femtosecond infrared spectroscopy the ultrafast and persistent photoinduced phase transition of Rb 0.94 Mn Co 0.06 [Fe(CN) 6 ] 0.98 ⋅ 0.2H 2 O material, induced at room temperature a single laser shot. This system exhibits charge‐transfer based with 75 K wide thermal hysteresis, centred temperature, from low 3+ −N−C−Fe 2+ tetragonal to high cubic phase. At is persistent. However, out‐of‐equilibrium dynamics leading this multi‐scale. Femtosecond spectroscopy, particularly...