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Years Active: 2008-2019
Title: Manuel Joffre: Innovator in Pump-Probe Spectroscopy
Introduction
Manuel Joffre is a notable inventor based in Palaiseau, France. He has made significant contributions to the field of pump-probe spectroscopy, holding two patents that showcase his innovative approach to managing light pulses. His work has implications for measuring the reactions of samples exposed to light, which is crucial in various scientific applications.
Latest Patents
Joffre's latest patents include a "Device for managing pulses in pump-probe spectroscopy." This device is designed to manage light pulses for measuring the reaction of a sample exposed to a first light pulse. The measurement is performed by analyzing a signal emitted by the sample subjected to a second light pulse, which is shifted with respect to the first pulse by a determined interval of time. The device features two optical detectors for detecting the pulses of two light beams emitted by two pulsed laser sources, each with different, arbitrary, and stable repetition frequencies. The detectors are connected to a computer that determines the interval of time between the two pulses, which is crucial for analyzing the sample's reaction.
Another significant patent is the "Method and device for measuring the phase and amplitude of ultrashort light pulses." This method involves a first step of linear optical filtering of the signal to measure the amplitude of the pulses through acoustic interaction. The second step includes either mixing in a non-linear response electro-optical element or integrating the detection of the square of the optical intensity diffracted by the acoustic beam.
Career Highlights
Throughout his career, Manuel Joffre has worked with prominent organizations such as Fastlite and École Polytechnique. His experience in these institutions has allowed him to refine his expertise in optics and spectroscopy, contributing to his innovative inventions.
Collaborations
Joffre has collaborated with notable colleagues, including Thomas Oksenhendler and Daniel Kaplan. These collaborations have likely enriched his research and development efforts, leading to advancements in the field of spectroscopy.
Conclusion
Manuel Joffre's contributions to pump-probe spectroscopy through his innovative patents highlight his role as a significant inventor in the field. His work continues to influence scientific research and applications in optics.