Current Ph.D. Students

Recent Publications and Presentations:

C. Miao, S. N. Shafrir, J. C. Lambropoulos, J. Mici, and Stephen D. Jacobs, "Shear stress in magnetorheological finishing for glasses", Appl. Opt. 48, 2585-2594 (2009).

C. Miao, S. N. Shafrir, J. C. Lambropoulos and S. D. Jacobs, "Normal force in magnetorheologial finishing", SPIE Conference 7426: Optical Manufacturing and Testing VIII, San Diego, CA, Aug. 4-5, 2009 (CD) 7426-11.

C. Miao, J. C. Lambropoulos, S. N. Shafrir, H. J. Romanofsky and S. D. Jacobs, "Contributions of nanodiamond abrasives and deionized water in magnetorheological finishing of aluminum oxynitride", SPIE Conference 7426: Optical Manufacturing and Testing VIII, San Diego, CA, Aug. 4-5, 2009 (CD) 7426-12.

C. Miao, K. M. Bristol, A. E. Marino, S. N. Shafrir, J. E. DeGroote and S. D. Jacobs, "Magnetorheological fluid template for basic studies of mechanical-chemical effects during polishing," Proceedings of SPIE vol. 6671: Optical Manufacturing and Testing VII, (2007).

G. P. Cox, K. L. Marshall, J. C. Lambropoulos, M. Leitch, C. Fromen,
and S. D. Jacobs, "Modeling the effects of microencapsulation on the electro-optic behavior of polymer cholesteric liquid crystal flakes," accepted for publication in J. Appl. Phys. (Dec.2009).

____________________________

Former Ph.D. Students and Selected Publications

She also determined the effectiveness of nanodiamonds with different degrees of friability (resistance to crushing). The model she developed is one of a very few that considers glass composition in predicting the removal rate.

Dr. DeGroote Nelson is currently a staff scientist at Optimax Systems, Inc., Ontario, NY.

Publications and Presentations:

J. E. DeGroote, A. E. Marino, J. P. Wilson, A. L. Bishop and S. D. Jacobs,"Removal rate model for Magnetorheological Finishing (MRF) of Glass,"Applied Optics, 46, pp. 7927-7941 (2007).

J. E. DeGroote, A. E. Marino, J. P. Wilson, A. L. Bishop and S. D. Jacobs, "The role of nanodiamonds in the polishing zone during magnetorheological finishing," Proceedings of SPIE 6671: Optical Manufacturing and Testing VII, 6671Z-01-15 (2007).

Suspended in a dielectric fluid-filled cell, her doped flakes exhibited both translational and rotational motion under dc-field excitation.

Dr. Trajkovska-Petkoska is currently Assistant Professor at the Faculty of Technology and Technical Sciences - Veles, University St. Clement Ohridski - Bitola, Republic of Macedonia; she is also Vice-Dean of Education.

Publications and Presentations:

A. Trajkovska-Petkoska and S. D. Jacobs,“Effect of Different Dopants on Polymer Cholesteric Liquid Crystal Flakes,” Mol. Cryst. Liq. Cryst., 495, pp. 334-347 (2008)

A. Trajkovska Petkoska, T. Z. Kosc, K. L. Marshall, K. Hasman and S. D. Jacobs, "Motion of Doped-Polymer-Cholesteric Liquid Crystal Flakes in a Direct-Current Electric Field," J. Appl. Phys. 103, 094907 (2008)

A. Trajkovska-Petkoska, T. Z. Kosc, K. L. Marshall, and S. D. Jacobs, "Electro-optics of polymer cholesteric liquid crystal flakes: applications toward electronic paper," presented at the 9th European Conference on Liquid Crystals, Lisbon, Portugal, July 2, 2007.

A. Trajkovska-Petkoska, R. Varshneya, T. Z. Kosc, K. L. Marshall, and S. D. Jacobs, "Enhanced Electro-Optic Behavior for Shaped Polymer Cholesteric Liquid Crystal (PCLC) Flakes Made by Soft Lithography," Adv. Funct. Mater. 15, pp. 217-222 (Feb. 2005 - journal cover photo).

Dr. Aric B. Shorey, Project Engineer Corning, Inc.,Corning, NY “Mechanisms of Material Removal in MRF of Glass” Ph.D. Thesis, Materials Science, University of Rochester, May 2000.

Selected Publications:

A. B. Shorey, S. D. Jacobs, W. I. Kordonski, R. F. Gans, “Experiments and Observations Regarding the Mechanisms of Glass Removal in Magnetorheological Finishing,” Appl. Opt. 40, 20–33 (2001).

A. B. Shorey, K. M. Kwong, K. M. Johnson, and S. D. Jacobs “Nanoindentation Hardness of Particles Used in Magnetorheological Finishing (MRF),” Appl. Opt. 39, 5194–5204 (2000).

A. B. Shorey, W. I. Kordonski, S. R. Gorodkin, S. D. Jacobs, R. F. Gans, K. M. Kwong, and C. H. Farny, “Design and Testing of a New Magnetorheometer,” Rev. Sci. Instrum. 70, 4200–4206 (1999).

Prof. Eileen Korenic, Dept. of Physics and Astronomy, Univ. of Wisconsin, River Falls “Colorimetry of Liquid Crystals” Ph.D. Thesis, The Institute of Optics, University of Rochester, June 1997 On 19 June 1998, Eileen Korenic was awarded the Glenn H. Brown Prize by the International Liquid Crystal Society for the most outstanding Ph.D. thesis on liquid crystals written in the USA since 1994.

Selected Publications:

E. M. Korenic, S. D. Jacobs, S. M. Faris, and L. Li, “Cholesteric Liquid Crystal Transmission Profile Asymmetry,” Mol. Cryst. Liq. Cryst. 317, 221–235 (1998).

E. M. Korenic, S. D. Jacobs, S. M. Faris, and L. Li, “Cholesteric Liquid Crystal Flakes—A New Form of Domain,” Mol. Cryst. Liq. Cryst. 317, 197–219 (1998).

E. M. Korenic, S. D. Jacobs, S. M. Faris, and L. Li, “Color Gamut of Cholesteric Liquid Crystal Films and Flakes by Standard Colorimetry,” Color Res. Appl. 23, 210–220 (1998).

Dr. Michael J. Cumbo, General Manager, Semrock,Inc., Rochester, NY. “Chemo-Mechanical Interactions in Optical Polishing” Ph.D. Thesis, The Institute of Optics, University of Rochester, May 1993

Selected Publications:

M. J. Cumbo, D. Fairhurst, S. D. Jacobs, and B. E. Puchebner, “Slurry Particle Size Evolution During the Polishing of Optical Glass,” Appl. Opt. 34, 3743–3755 (1995).

M. J. Cumbo and S. D. Jacobs, “Determination of Near-Surface Forces in Optical Polishing Using Atomic Force Microscopy,” Nanotechnology 5, 70–79 (1994).

Dr. Jae Cheul Lee, - Daewoo Institute for Advanced Engineering, Seoul, Korea “Applications of Cholesteric Liquid Crystal in Laser Resonators and Amplifiers” Ph.D. Thesis, The Institute of Optics, University of Rochester, May 1990

Selected Publications:

J. C. Lee, S. D. Jacobs, and K. J. Skerrett, “Laser Beam Apodizer Utilizing Gradient-Index Optical Effects in Liquid Crystals," Opt. Eng. 30, 330–336 (1991).

J. C. Lee and S. D. Jacobs, “Design and Construction of 1064-nm Liquid-Crystal Laser Cavity End Mirrors,” J. Appl. Phys. 68, 6523–6525 (1990).

J. C. Lee, S. D. Jacobs, T. Gunderman, A. Schmid, T. J. Kessler, and M. D. Skeldon, “TEM00-Mode and Single-Longitudinal-Mode Laser Operation with a Cholesteric Liquid-Crystal Laser End Mirror,” Opt. Lett. 15, 959–961 (1990).