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Diaa Khalil was born in Cairo Egypt. He received his Ph.D. degree in Optoelectronics, from the INPG (Institut National Polytechnique de Grenoble) France. From 1993 he worked as an assistant professor at the Dept. of Electronics and Communication Eng., Faculty of Eng., Ain Shams University, and since 2004, he is a Professor in the same Dept. From Jan. 1998 to May 2000, he joined the LCIS (Laboratoire de Conception et d'Integration des Systèmes), at the INPG, an invited Professor. From 2000 to 2004 he joined MEMSCAP as a head of the Optical MEMS group in MEMSCAP Egypt. He worked as a consultant for many international companies like Teem Photonics (France) in Integrated optics and Mentor Graphics (USA) in RET for optical lithography. From 2007 he joined Si-ware Systems as a CTO of the MEMS division. His current interests include Optical MEMS and Integrated Optics. Prof. Diaa Khalil is a member in the SPIE, and a senior member in the OSA and IEEE. He is a holder of Egyptian state prize in the engineering sciences in 1998, and Selected as one of the pioneers in the field of engineering by the Marquise Who's Who in Science and Engineering, in its 10th Anniversary Edition in 2007. He is currently a member in the Council of Engineering Sciences, in the Academy of Scientific Research and Technology ASRT in Egypt. He is inventor of about 10 patents and author and co-author of more than 150 publications in international journals and conferences. He is also a regular reviewer for many international journals like IEEE-PTL, JLT, Optical Engineering, Optics Express, Applied optics, etc.


  Talk Title: "Silicon Integrated Spectrometers: A New Era of Sensors for Monitoring and Hand-held Applications"    

Talk Abstract:

Optical spectrometers are key sensors in many wide spread applications. They are essential elements for material identification through its spectrum signature which make them quite suitable for different domains like gaz sensing, pharmaceutical material composition measurement and control, biomedical and environmental monitoring and so on. In all these applications, the spectrum is like the figure print of the material. In its current status, the optical spectrometer is usually a disc top instrument with high cost, weight and size. Having the spectrometer in a hand –held, low weight and cost form factor can enable enormous applications in the market especially in food industry and health care monitoring.
In the last decades, many attempts have been done and a great effort is oriented towards the development of an integrated optical spectrometer. While a good step has been achieved in the UV and visible spectral range due to the advances in CCD and detector arrays, the situation is more complex in the IR especially when targeting a Fourier Transform spectrometer which is the de-Facto standard in this range. One of the strongest candidate technologies to achieve this promise is the MEMS technology based on the use of Deep Reactive Ion Etching DRIE technology on an SOI wafer. This technology allows integrating both moving free space elements like mirrors and lenses and fixed elements like waveguide components and grating structures on the same substrate. The components will be all self-aligned with the lithographic accuracy and fabricated within the same process steps. 

This talk will address the current status as well as the potential of the newly developed monolithic integrated optical spectrometer on a Si substrate. Different optical structures developed for this purpose like Michelson and Mach-Zehnder interferometers, will be addressed. The talk will then assess the state of the art, potentials and challenges facing this dream of integrated monolithic optical spectrometer from both an industrial as well as academic points of view.


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