GEMINI is a novel and compact interferometer that can guarantee very high robustness and stability between the two generated replicas of light.
The exceptional performances of this device can be exploited in many different applications, such as:
Time- and Frequency-resolved Fluorescence
Coherent Raman Spectroscopy
Fluorescence Microscopy on Single Molecules
Complex vibrational susceptibility by interferometric Fourier transform stimulated Raman scattering (2018)
Time- and frequency-resolved fluorescence with a single TCSPC detector via a Fourier-transform approach (2018)
GEMINI INTERFEROMETER applied to measurements of Fluorescence Excitation-Emission Maps (EEMs)
GEMINI-2D Interferometer is the advanced model of the GEMINI, specially designed to:
- keep constant the dispersion during the scan of the relative delay between the two generated replicas of light
- keep fixed the absolute arrival time of one of the two replicas (with attosecond stability)
The capability of generating two collinear replicas of the light makes the GEMINI-2D the ideal device for time-resolved measurement, in which preserving the pulse duration and the synchronization with another light pulse is crucial to guarantee the time resolution.
The GEMINI-2D simplifies the experimental setup for the generation of the required phase-locked pulse pair for sample excitation. It guarantees control of the relative delay between the pulse replicas with sub-attosecond precision and long-term reproducibility.
It makes the 2DES setup much more compact, simple to operate and cost-effective than using diffractive-optics beam splitters, pulse shapers or active path-length stabilization.
Electron/hole relaxation pathways in CdTe nanorods with sub-100 fs time resolution: “Two-Dimensional Electronic Spectroscopy Unravels sub-100 fs Electron and Hole Relaxation Dynamics in Cd-Chalcogenide Nanostructures” (2017)
Exciton relaxation in J aggregates: “Lévy Defects in Matrix-Immobilized J Aggregates: Tracing Intra-and Intersegmental Exciton Relaxation” (2017)
Ultrafast carrier thermalization in lead iodide perovskite: “Ultrafast carrier thermalization in lead iodide perovskite probed with two-dimensional electronic spectroscopy” (2017)
Tracking the coherent generation of polaron pairs in conjugated polymers: “Tracking the coherent generation of polaron pairs in conjugated polymers” (2016)