User:Shufengbai

Shufeng Bai is nanotechnology engineer who works on nanofabrication and related technologies including nanophotonics, nano-optoelectronics,nanofluidics and nanobiotechnologies. He got his Bachelor of Science degree in physics from Peking University China. He was working with Prof. Qi Ouyang on the dynamics of spiral waves in reaction-diffusion system. He got his Master of Arts degree in Electrical Engineering from Princeton University. Now he is studying towards his Ph.D. in Princeton University. He works with Prof. Stephen Chou on nanoimprint lithography and its applications. He is expecting to get his Ph.D in 2006.

Education

 * Ph.D, Princeton University, Electrical Engineering (expected: November 2006)
 * Major: Electronic Materials and Devices
 * Minor: Information Sciences and Systems
 * Thesis: Nanophotonic devices, applications and fabrication by nanoimprint lithography
 * Advisor: Prof. Stephen Y. Chou
 * M.A., Princeton University, Electrical Engineering (2002)
 * B.S. with Honor, Peking University, China, Physics (2000)

Research Interests
Nanoimprint Lithography, Nanofabrication, Nanophotonics, Optical Properties of Nanostructures, Subwavelength Optical Elements, Nanofluidic Devices, Nanobiotech.

Research Experience

 * Research Assistant, Nanostructures Lab, Princeton University		2000-present
 * Demonstrated spectrum narrowing and wavelength stabilization of high power semiconductor lasers using innovative external cavity configuration
 * Demonstrated a single mode diode laser with an external cavity using a subwavelength resonant grating (SRG) filter as a frequency selective element
 * Invented a novel process to fabricate large area high density nanofluidic channels for applications in nanobiotechnology, such as stretching single DNA molecule
 * Developed a novel process to fabricate large area ordered two-dimensional array of nanorings of various materials such as gold, platinum, nickel and cobalt
 * Established a process to make high aspect ratio ultra-smooth grating structures through the combination of DRIE and anisotropic wet etching
 * Developed a process using nanoimprint lithography to make high aspect ratio deep structures
 * Miscellaneous projects, such as organic light emitting diodes, vapor phase anti-sticking layer coating, photo-curable nanoimprint, novel imprint resists, integrated photonic circuit, and numerical simulations


 * Research Assistant, Nonlinear Physics Lab, Peking University		       1999-2000
 * Discovered the scaling rule of spiral waves in reaction-diffusion system

Teaching Experince

 * Teaching Assistant, Department of Electrical Engineering, Princeton University
 * Integrated Circuits: Practice and Principles, Prof. Wagner, Spring 2005
 * Prepare labs and supervise students to fabricate working Integrated Circuits and test them, host consultation sessions; prepare homework and exam solutions and grade them
 * Teaching Assistant, Department of Electrical Engineering, Princeton University
 * Photonics and Light Wave Communications, Prof. Prucnal, Spring 2002&2003
 * Conduct precepts, consultation sessions; design, assign and grade homework and exams
 * Equipment Training, 	Nanostructures lab and PRISM cleanrooms, Princeton University
 * Official trainer for many pieces of equipment (AFM, Mask Aligner, RIE, DRIE, etc)

Skills

 * 6 years of experience in Nanoimprint Lithography and nanofabrication technologies.
 * Nanofabrication: Nanoimprint Lithography, photolithography, thin film deposition (LPCVD, PEVCD, e-bam evaporation, sputtering, oxidation, etc), RIE, deep silicon etcher, wet processing, high temperature process.
 * Microscopy: scanning electron microscopy, atomic force microscopy, florescent microscopy
 * Optics and optoelectronics: Optical spectrum analyzer, monochromator, spectrometer, tunable laser, Ar ion laser, free space and fiber optics, diode laser controller, temperature controller, pulse generator, function generator, etc
 * Theatrical background: optics, optoelectronics, advanced mathematics, theoretical physics, solid state physics, device physics, fiber optics, and information science.
 * Software: Matlab, Femlab, Gsolver, DiffractMod, TFCal, FDTD, Labview, Origin, C, Autodesk Inventor, etc
 * Optoelectronic device packaging, organic electronics fabrication, test and measurement automation, machine shop

US Patent

 * S.Y. Chou, S. Bai, A.S.P. Chang, H. Tan, and J.J. Wang, Mode-locked laser using a modelocking wavelength selective reflector, Pub. Appl. No. 20040008742, filed March 2003

Selected Publications

 * S. Bai and S. Y. Chou, A Spectrum-Narrowed, Wavelength and Temperature Stabilized Broad Area Laser Using a Subwavelength Resonant Grating Filter Feedback, (in preparation)
 * S. Bai and S. Y. Cou, Fabrication of Large Area Metallic Nano-Ring Array Using Nanoimprint Lithograph, The Fiftieth International Conference on Electron Ion, and Photon Beam Technology and Nanofabrication (EIPBN'06), Baltimore, MD, 2006
 * S. Bai, H. Ge, W. Wu, Z. Yu, and S. Y. Chou, Novel Fabrication of Enclosed Nanofluidic Channels by Direct Imprint and Bonding of Transfer Layer, The Forty-eighth International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication (EIPBN'04), San Diego, CA, 2004
 * S. Bai, H. Ge, Q. Xia, X. Huang, and S. Y. Chou, Fabrication of High Aspect Ratio, 50 µm Deep Polymer Gratings with Smooth Sidewalls Using Nanoimprint Lithography, The Second International Conference on Nanoimprint and Nanoprint Technology (NNT'03), Boston, MA, 2003
 * X. Lei, S. Bai, H. Gao, and S. Y. Chou, A Waveguide Beam Splitter based on Optical Tunneling, The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society (LEOS'03), Tucson, AZ, 2003
 * A. Chang, H. Tan, S. Bai, W. Wu, Z. Yu, and S. Y. Chou, A novel low-cost tunable laser using a tunable liquid-crystal subwavelength resonant grating filter, The 23rd annual Conference on Lasers and Electro-Optics (CLEO'03) and the 11th Quantum Electronics and Laser Science Conference (QELS'03), Baltimore, MD, 2003
 * A. Chang, H. Tan, S. Bai, W. Wu, Z. Yu, and S. Chou, Tunable External Cavity Laser Using Subwavelength Resonant Gratings Fabricated by Nanoimprint Lithography, The First International Conference on Nanoimprint and Nanoprint Technology (NNT'02), San Francisco, CA, 2002
 * A. S. P. Chang, S. Bai, H. Tan, W. Wu, Z. Yu and S. Y. Chou, A Novel, Simple and Low-cost External Cavity Laser using Subwavelength Resonant Grating Filter, (LEOS'02), Glasgow, Scotland, 2002
 * H. Tan, A. S. P. Chang, W. Wu, Z. Yu, S. Bai and S. Y. Chou, A Tunable Subwavelength Resonant Grating Optical Filter, (LEOS'02), Glasgow, Scotland, 2002
 * Y. Li, S. Bai, and Q. Ouyang, The Power Law Relation of Spiral Waves in the Belousov-Zhabotinsky reaction, J. Chem. Phys 113, 11280 (2000)

Hobbies
Shufeng played soccer in middle school and basket ball in high school. He learned Chinese martial arts and swim in college.

Starting from 2004, he occationally plays the international game GeoCaching, in which a player seeks the pre-hinden "cache" with hints from GPS and other information.

Now he is learning figure skating slowly.

Biography
Shufeng Bai was born on November 23, 1977 in Keshang Township, Heilongjiang Province, China. He is father was a carpenter in a small village of rural northeastern China.