Dr. Jim Kafka
Processing of a semiconductor substrate
using a Spectra-Physics ultraviolet laser
Dr. Jim Kafka
UND Physics & Astrophysics is pleased to welcome Dr. Jim Kafka, Senior Director of Advanced Research & Development at Spectra-Physics, who will be visiting UND from April 16-17 as part of the American Physics Society Division of Laser Sciences Distinguished Traveling Lecturer Program. Dr. Kafka will be giving several talks during his visit.
Public Lecture: "Fifty-Five Years of Lasers"
Thursday, April 16, 2015, 7:30-8:30pm, 101 Abbott Hall, UND
The first laser was demonstrated 55 years ago and Spectra-Physics, the first commercial laser company, has been producing products since the beginning. I will review the uses for these lasers from measuring the distance to the moon and scanning bar codes in the supermarket to laser light shows and 3D printing. I will then describe the role of today’s laser systems in vision correction and manufacturing of cell phones.
Guest Lecture for PHYS 253: "Holey Fibers – a New Frontier in Fiber Optics"
Friday, April 17, 2015, 10:00–11:00am, 102 Witmer Hall
Optical Fibers are a key component in our current telecommunication networks. I will describe a novel type of photonic crystal fiber or holey fiber that has unique properties for guiding, dispersion and nonlinear optical effects. PHYS 253 and PHYS 325 students are strongly encouraged to attend this talk.
Physics Colloquium: "Ultrafast Lasers and Ultrafast Science"
Friday, April 17, 2015, 4:00–5:00pm, 211 Witmer Hall; coffee and cookies at 3:30pm in 215 Witmer
Ultrafast lasers have been used extensively in basic research. For example, these sources were instrumental in the work of the Nobel Prize winner in Chemistry for 1999. Ultrafast sources have found increasing use in commercial applications as well. I will review the basic components of an ultrafast laser system and describe how ultrafast pulses are generated. I will then present several commercial applications for ultrafast pulses including micro-machining and confocal microscopy.
Jim Kafka received the B.S. and Ph.D. degrees from the Institute of Optics at the University of Rochester in 1977 and 1983, respectively. For the last 31 years, he has been developing new products and is currently the Senior Director of Advanced R & D for Spectra-Physics, a division of Newport Corporation. In addition to authoring numerous journal articles, conference presentations and seminars, he co-authored a book chapter on Ultrafast Nonlinear Optics and holds more than 40 patents. Jim was the principal designer on three products, the Tsunami, the Opal and the Millennia X, which have won technology achievement awards. He has served the optics community as the Ultrafast Phenomena topical editor for JOSA B, the co-chair for the CLEO and Advanced Solid-State Photonics conferences and as a Director on the Board of Directors for the OSA. Jim is quite pleased to have served as a Distinguished Traveling Lecturer for the Division of Laser Science of the APS and to be a Fellow of the OSA.