Charbel Cherfan Email and Phone Number

For more than 20 years, APEX Technologies has been developing and marketing innovative ultra high performance test equipments intended for the field of optical telecom signal measurement, optical sensors, optical frequency combs or integrated photonics.Products: Optical Spectrum Analyzer (state of the art spectral resolution), Optical Complex Spectrum Analyzer, Optical Frequency Domain Reflectometer, External Cavity Tunable Laser Source, Polarimeter and Multi-Tests PlatformsMain responsabilities:- Identify and pursue new business opportunities worldwide- Interaction with customers in an international market to understand their needs and develop relevant technical offers- Collaborate with the R&D team to adapt solutions to customer needs.- Demonstrations of our various measurement devices remotely from the APEX Technologies laboratory or directly on site at our customers facilities worldwide- Represent the company at industry events, conferences, and networking opportunities- Collaborate with other companies to publish joint application notes and organize joint live demonstrations - Manage Company website and Linkedin

Contribution to the development of the cold atom gyroscope experiment, which has demonstrated several times record performances. . One part of the postdoc work was to perform a test of the Sagnac effect for matter waves in a so-far unexplored range of accuracy in order to test predictions of the Standard Model Extension. Another aspect of the postdoc work was to improve the sensitivity of the cold atom sensor by operating the interferometer in the double diffraction regime. In this architecture, the sensitivity should average to achieve the detection noise.

. Numerical simulation of the classical and quantum kicked rotor model. Ultra-high vacuum techniques (design, assembly, bake-out). Development of an original laser frequency stabilization technique for laser cooling using acetylene molecule. Development of an automated data processing using Matlab. Conceiving a new laser system for optical dipole trapping (new publication in preparation). Observation of the first magneto-optical trap of potassium in 2019. Observation of the first Bose-Einstein condensate in 2021

Practical work for chemistry students: includes optics, electronics and electromagnetics

Realization and characterization of a multi-frequency laser system architecture for laser cooling based on telecom fiber amplifier technology.

Study the thermal exchange in microfluidic systems on Comsol Multiphysics. The purpose of this simulation is to study different types of micromixers and make a comparison between them.