INDUSTRY ADVISORY BOARD MEETING
NATIONAL SCIENCE FOUNDATION CENTER
FOR LASERS AND PLASMAS FOR ADVANCED MANUFACTURING
A registration form is required for each person attending the IAB. Please download, complete and submit your registration form no later than May 20, 2011.
Dates: Wednesday, May 25th, Thursday, May 26 and Friday, May 27, 2011
Location: GM Room, Lurie Engineering Center, University of Michigan, Ann Arbor, Michigan
Board Chairman: Mr. Bill Stone, NAVAIR
Wednesday, May 25, 2011
Workshop 1:00 – 5:00
1:00 – 2:00 pm Micro Texturing of Surfaces by Laser Process
Barak k. Nayak and Mool C. Gupta, Dept. of EE & CS, Univ. of Virginia, Charlottesville, VA
Abstract: Self organized surface microtexture was observed under pulsed laser processing of semiconductors, metal alloys and other materials. The talk will provide details of microtexture formation process mechanism, area of solar energy, photodetectors, bio-implants and for superhydrophobic uses.
Short bio of presenter:
Professor Gupta is currently a Langley Distinguished Professor and Director of NSF I/UCRC Center for Lasers and Plasmas at the University of Virginia.
His professional experience include:
Senior Scientist at Jet Propulsion Laboratory, Group Leader at the Research
Laboratories of Eastman Kodak and Director of Applied Research Center at ODU.
Education include: Senior Research
Fellow at Caltech, Postdoctoral Fellow at Cornell University, and Ph.D. in
Physics from Washington State University.
He has over 140 research publications and 25 patents and was inducted in Kodak’s Inventors Gallery. His research interest includes Photon Processing of Materials, photovoltaics, optical devices and sensors.
2:00 – 3:00 pm Applications of Ultrafast Fiber Laser in Material Processing
Bing Liu, Yuki Ichikawa, Makoto Murakami, IMRA America, Inc., Ann Arbor, MI
Abstract: After more than 15 years of research and development, IMRA America Inc. has delivered a family of ultrashort pulsed fiber lasers with MHz repetition rates for material applications. This presentation will summarize a few recent research works on applying IMRA’s fiber lasers in material processing. The related applications are mostly based on laser-induced surface modification effects: including (i) femtosecond-laser-induced periodic surface structuring, (ii) laser-induced backward transfer for printing on transparent medium, and (iii) laser-induced super-hydrophobicity on metal and dielectric surfaces that mimics nature’s ‘lotus effect’.
In the above applications, a high pulse repetition rate in the MHz range plays a critical role, not only providing a high process speed, but also altering the underlying laser ablation mechanisms. The ultrashort pulse duration (600 fs) enables low pulse energy processing that improves spatial precision and reduces heat damaging. At near (and above) ablation threshold, femtosecond laser pulses also produces nanometer-scaled morphological features not only on the surface of the work pieces but also in the ablated materials.
By combining the above factors, we further demonstrate another technique of ultrafast fiber laser for material processing, that is fine tuning the processes with manipulating the time sequence of pulse train, in particular, by grouping the pulses into bursts with a short pulse separation of a few tens of nanoseconds between pulses.
In summary, we will demonstrate ultrafast fiber laser as a unique tool in industrial laser material processing that can provide advantages in process speed, spatial precision, controllability and robustness.
Short bio of presenter:
BS and MS, physics, 1991, Fudan University, China, PhD, physics, 2003, University of Colorado Boulder, CO, Postdoctoral researcher, 2003-2005, University of California Berkeley and Lawrence Berkeley National Lab, Research
Scientist: 2005-present, IMRA America, Inc.
3:00 – 3:30 pm Afternoon Break
3:30 – 4:30 pm
FORMATION OF MICRO-SPIKES WITH FEMTOSECOND LASER PULSES UP TO THRESHOLD FLUENCE: MORPHOLOGY AND APPLICATION
D.H. Kam, L. Song, S. Bhattacharya and Jyotirmoy Mazumder
Center for Lasers and Plasmas in Advanced Manufacturing, University of Michigan, Ann Arbor, MI
Abstract: We discuss random evolution of conical micro-scale spikes on steel surface under femtosecond irradiation with near threshold fluence at high repetition. A possible mechanism for micro-needle formation is discussed. Compared to conical spikes formed through surface evolution with higher fluence, the resulting spikes have characteristics of lower apex angles and non-uniform distributions. High resolution Electron Microscope data will also presented to show their nanometer level morphology.
Both hydrophilic and hydrophobic surfaces are demonstrated on stainless steel (316L) by creating conical microneedles on the surface with femtosecond laser irradiation in air. The scan speed is found to be an effective parameter controlling the cone number density and the contact angle. It was found that the contact angle of water ranges from 0° (superhydrophilic) to 113° on the laser microstructured surfaces depending on the processing conditions. Also we demonstrate superhydrophobicity (~150°) by silane coating on the hydrophobic surface geometry.
Short bio of presenter:
Jyoti Mazumder is Robert H. Lurie Professor of Engineering in the Department of Mechanical Engineering and Materials Science and Director of NSF Industry University Co-operative Center for Lasers and Plasmas in Advanced Manufacturing at the University of Michigan in Ann Arbor. He has published more than 350 papers, co-authored books on Laser Chemical Vapor Deposition and Laser Materials Processing. He also edited/co-edited 10 books on topic related to laser materials processing and Mechanical Engineering. He holds 15 U.S patents. He is taking his research to market by commercializing DMD through a start up called POM Group Inc, where he acts as CEO. DMD systems are installed in four continents. Some of His laser Welding patents are licensed to Ford Motor Company. Dr. Mazumder has received numerous awards and honors for his research including, Schawlow Award for seminal contribution to Laser application research from Laser Institute of America in 2003, William T Ennor Award for manufacturing from ASME in 2006, Adams Memorial Membership award from
American Welding Society in 2007, Thomas A Edison Patent Award from ASME for inventing First closed loop Direct Metal Deposition system, which will significantly enhance some aspect of Mechanical Engineering, in 2010, Manufacturing Engineer of the Year (1986) from Society of Manufacturing Engineer, University Scholar (1985) and Xerox (1987) award from University of Illinois. He is also Fellow of American Society of Mechanical Engineers (ASME). American Society of Metals (ASM) and Laser institute of America (LIA). He served as the president of the Laser Institute of America in the year 2000. Dr. Mazumder was Editor in Chief of the Journal of Laser Applications until December 2009.
Thursday, May 26, 2011
8:00 am – 8:30 am, Continental Breakfast and Registration
8:30 a.m. – 8:45 am, Welcome to U of M Jack Hu, Assoc. Dean, Academic Affairs
8:45 am – 9:00 am, Welcome & Introductions Bill Stone, NAVAIR, Board Chairman
9:00 am – 9:15 am, NSF Presentation Dr. Rathindra Dasgupta, NSF
9:15 am – 10:15 am, Overview of Center Progress Prof. Jyoti Mazumder, U of M and Technical Presentation and Students
10:15 am – 10:30 am, Coffee Break
10:30 – 11:30 pm, Overview of Center Progress Prof. Mool Gupta, UVA and Technical Presentation and Students
11:30 am – 1:30 pm, Lunch Break, Johnson Rooms A & B
1:30 pm – 2:30 pm, Overview of Center Progress Prof. Radovan Kovacevic, SMU and Technical Presentation and Students
2:30 pm – 3:30 pm, Overview of Center Progress, Prof. David Ruzic, UIUC and Technical Presentation and Students
3:30 pm – 3:45 pm, Afternoon Break
3:45 pm – 5:15 pm, Life Form for UVA, SMU, UIUC and UM Dr. Don Davis
5:15 pm – 5:45 pm, Lab Tours U of M Center Team
5:45 pm – 6:30 pm, Posters Reception Masco Lounge, Lurie Building
6:30 pm – 8:00 pm, Dinner, Johnson Room A & B, Lurie Building
Friday, May 27, 2011
7:45 am – 8:15 am, Continental Breakfast
8:15 am – 9:00 am, Business Meeting/Planning Board Members, Evaluation Forms Provided
9:00 am – 10:00 am, Drexel State University Presentation
10:00 am – 10:30am, Coffee Break
10:30 am – 11:00 am, NCSU Update: Preparation and Planning for Start in Center, Steven Shannon
11:00 am – 11:30 am, University of Texas, Dallas, Presentation
11:30 am – 12:00 pm, Lunch, Johnson Rooms A and B (Box lunch will be available)
12:00 – 1:30, Working Lunch – Feedback Session Board Members & Center Directors (closed door) Johson Rooms A and B
1:30 pm – 1:40 pm, Center Evaluation Forms Collected, Dr. Don Davis
1:45 pm, Summary and Thank you, Prof Jyoti Mazumder, U of M
2:00 pm, Adjourn