CONTACT INFORMATION
| Phone: (216) 368-4125 |
| Fax: (216) 368-4671 |
| Email: rosenblatt@case.edu |
Office:Rockefeller Bldg. 105C, 10900 Euclid Avenue
Cleveland, OH 44106-7079 |
EDUCATION
Ph.D. in Applied Physics Harvard University
S.B. in Physics Massachusetts Institute of Technology |
ACTIVE RESEARCH
Nanocontrol of Liquid Crystals
An atomic force microscope is used to pattern substrates on micrometer and nanometer length scales to control liquid crystal orientation. Fundamental studies include the behavior of phase transitions in the presence of highly deformed director profiles and nanoconfined geometries. Applications include the development of switchable optical gratings and nano-scale switchable images. |
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Nanotomography of Liquid Crystals & Soft Materials
The probe of a polarized near field scanning optical microscope (NSOM) is plunged into a soft sample, allowing us to create two-dimensional (x,y) optical images as a function of height z above the substrate. This facilitates the construction of a three dimensional profile of liquid crystal order and other soft materials with resolution < 100 nm.
POTENTIAL IMPACT
This work enables us to study phase transition and other phenomena in soft materials such as liquid crystals on heretofore inaccessible length scales. New phenomena have appeared, and a better understanding of extant phenomena has been achieved. New devices, such as a polarization-independent, electrically-switchable blazed grating have emerged from this work.
SELECTED PUBLICATIONS
"Ultra-high resolution liquid crystal display with gray scale," Appl. Phys. Lett. 76, 1240 (2000)
"Disruption of surface-induced smectic order by periodic surface corrugation," Phys. Rev. E 65, 041718 (2002)
"Planar degenerate substrate for micro- and nanopatterned nematic liquid crystal cells," J. Appl. Phys. 98, 034303 (2005).
FIELDS
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