Location History:
- Verrieres le Buisson, FR (2013)
- Verrières le Buisson, FR (2015)
- Verriéres le Buisson, FR (2017)
Company Filing History:
2 out of 5,069 
1 out of 30 
1 out of 1 Years Active: 2013-2017
Title: Innovations of Jean-Jacques Greffet
Introduction
Jean-Jacques Greffet is a notable inventor based in Verriéres le Buisson, France. He has made significant contributions to the field of terahertz technology, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of his latest patents is a terahertz modulator. This invention is designed to operate within a specific frequency band and includes a semi-conductor polar crystal that presents a Reststrahlen band overlapping the frequency band of use. The modulator features coupling means that allow for resonant coupling of an interface phonon polariton with incident radiation of a predetermined frequency. Additionally, it includes control means to modify the intensity of the coupling by altering the dielectric function of the polar crystal.
Another significant patent is a terahertz detection cell. This invention is aimed at detecting radiations within a specified spectral detection band. The detection cell comprises a polar semi-conductor crystal structured to form at least one slab, which has a Reststrahlen band covering the spectral detection band. It also includes coupling means that enable resonant coupling of an interface phonon polariton with incident radiation, along with connection terminals for electrical contact to measure impedance variations.
Career Highlights
Jean-Jacques Greffet has worked with prestigious organizations such as the Centre National de la Recherche Scientifique and STMicroelectronics in Grenoble. His work in these institutions has allowed him to further develop his expertise in semiconductor technology and terahertz applications.
Collaborations
Throughout his career, Greffet has collaborated with notable colleagues, including Simon Vassant and Fabrice Pardo. These collaborations have contributed to the advancement of his research and innovations in the field.
Conclusion
Jean-Jacques Greffet's contributions to terahertz technology through his patents and collaborations highlight his role as a leading inventor in this specialized field. His work continues to influence advancements in semiconductor applications and detection technologies.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.