Lei Wei

Biography

I was born in a lovely village in Anhui province of China, and I have a younger brother and sister. I love reading, math and philosophy, for sports, I like badminton. I studied Electronic Engineering (Photonics) at Univ. of Electronic Sci.&Tech. of China (UESTC) for my bachelor (with honor).  My bachelor end project is on "Multiwavelength Erdium-doped Fiber Laser". After my bachelor, I came to TU Delft for my master on Applied Physics. My master end project is on Extended Nijboer Zernike theory in cooperation with Carl Zeiss AG under the supervision of Dr. Bernd Kleemann and Prof. Urbach. And during the master, I have done an internship on Laser Speckle Contrast Analysis on measurement of Hemodynamics parameters.
I have been keeping a research blog  http://leiimaging.blogspot.nl/, short intro. about my research can be normally found here. 

Project

SPR detection of (bio-) organics at ultra-trace levels using nano-fabricated surfaces

This is a four year PhD research project that should lead to a PhD degree at Delft University of Technology. The subject is the detection of ultra-trace levels of organic contaminants. We will excite Surface Plasmon Resonances (SPRs) at suitably designed metallic surfaces and measure the amplitude, phase and polarization state of the reflected electric field. This strongly growing research field is extremely important for contamination control in ultra-clean manufacturing, e.g., in the semiconductor industry. We apply diffraction optics to obtain optimized periodic nano-structured metal layers.
The research comprises theoretical investigations of suitable diffractive structures as well as experimental validations and evaluations of sensitivities and detection limits.
The project will be carried out in the Optics Research Group of Delft University of Technology in collaboration with Philips Research MiPlaza, which will utilize the project results.