Etienne Rodriguez
About
Etienne Rodriguez is from Paris, Ile-de-France, France. In Etienne's previous role as a Research Fellow at L'Ens Ulm at Ecole normale superieur, Etienne worked in Paris, France until Aug 2022. Prior to joining Ecole normale superieur, Etienne was a Research Fellow at NTU at Nanyang Technological University and held the position of Research Fellow at NTU at Singapore. Prior to that, Etienne was a Ph.D Candidate at CNRS International, based in Singapore and France from Jan 2014 to Mar 2018. Etienne started working as Quality, Event Manager at OptoServices in Region de Paris, France in Sep 2011. From May 2012 to Aug 2012, Etienne was Internship at Lynton Clinics, based in Manchester, Royaume-Uni. Prior to that, Etienne was a Engineering School Project at the Lucia Laser System, based in Ecole Polytechnique (Paris), France from Sep 2010 to Sep 2011.
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Etienne Rodriguez's past jobs
Design of a new generation of high-frequency photodetectors in the infrared regions based on patch antenna technology. It consists of a matrix of absorbing regions (QWIP and QCD) placed in microcavities to improve the optical and electrical properties of the detectors. After extensive theoretical studies, we simulated the structures and then realized the detectors in clean room thanks to different microfabrication methods. Implementation of new experimental methods to characterize optically and electrically the devices to validate the models. The last step was the distribution of the prototypes to the collaborator to allow their integration in applied methods such as free space communication, spectroscopy, and LIDARs. Article published: Metamaterial engineering for optimized photon absorption in unipolar quantum devices. Etienne Rodriguez et al. Optics Express Vol. 30, Issue 12, pp. 20515-20531 (2022); https://doi.org/10.1364/OE.456318
* Training of new members on the microfabrication and characterization of Quantum Cascade Lasers and Quantum Well Infrared Photodetectors in the MWIR and LWIR region * Creation of high-speed and optical setups at cryogenic and room temperatures for dual-comb spectroscopy. * Diverse other projects based on Photonics Article published: Tunability of the Free-Spectral Range by microwave injection into a Mid-Infrared Quantum Cascade Lasers. Etienne Rodriguez et al. Laser & Photonics Reviews; https://doi.org/10.1002/lpor.201900389
WIDE-BAND MID-INFRARED QUANTUM DEVICES BASED ON INTERSUBBAND TRANSITIONS My thesis was focused on the development of quantum cascade laser (QCL) and quantum well infrared photodetector (QWIP) adapted for high frequency in the two atmospheric windows of mid and far infrared region (MWIR and LWIR). I had to master all the steps of the production: - Bibliographic research, creation of collaboration with laboratories and companies - Design, simulation, and optimization of active regions - Micro-fabrication in clean room (dry/wet etching, optical lithography, metal deposition, lift-off, and the different assembly steps) - Electrical, optical, and radio-frequency characterization of the device at room and cryogenic temperature Some devices have been adapted as a product of the startup at Lytid. Project on coherent beams recombination using Talbot cavities. We studied defects for discrimination and selection of supermodes using defects in the optical cavity. Article published: Room temperature, wide-band Quantum Well Infrared Photodetector for microwave optical links at 4.9 mm wavelength. Etienne Rodriguez et al. ACS Photonics, 2018, 5 (9), pp 3689-3694 DOI: https://doi.org/10.1021/acsphotonics.8b00704
Company managed by students during their studies to get practical experience by developing their own professional projects, experiencing the business world with the rigor of the administration.
Design of a new product composed of Q-Switch lasers and Optical fiber to clean the organic deposition of pieces of arts.
Following the development of short-pulse lasers for fundamental research on laser-matter interaction at high energy.