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Search Publications by: Jeeseong C. Hwang (Fed)

Displaying 151 - 173 of 173

Near-Field Polarimetric Characterization of Semi-Crystalline Polymer Systems

March 1, 2003

Author(s)

S N. Goldie, Michael J. Fasolka, Lori S. Goldner, Jeeseong C. Hwang, Kathryn Beers

We have studied crystallization in thin films of isotactic polystyrene (iPS) to better understand the morphology and formation of these structures through the use of polarization modulation near-field scanning optical microscopy (PM-NSOM). Polymer

Measuring Local Optical Properties: Near-Field Polarimetry of Photonic Block Copolymer Morphology

January 10, 2003

Author(s)

Michael J. Fasolka, Lori S. Goldner, Jeeseong C. Hwang, A Urbas, P DeRege, T Swager, Edwin L. Thomas

Due to their microphase separated morphology, block copolymers (BC) can exhibit photonic behavior if their domain periodicity is sufficiently large (>100 nm) [1]. Classical spectroscopic characterization of these optical properties is routine, but only

Atomic Transition Probability Bibliographic Database (version 7.0)

January 1, 2003

Author(s)

Jeffrey R. Fuhr, H R. Felrice, Karen J. Olsen, Jeeseong Hwang

Near-Field Optical Imaging of Microphase Separated and Semi-Crystalline Polymer Systems

January 1, 2002

Author(s)

Michael J. Fasolka, Lori S. Goldner, A Urbas, Jeeseong C. Hwang, Kathryn Beers, P DeRege, Evan L. Thomas

Polymer self-assembly presents an attractive means of creating the micro- and nano-patterned spatial arrays required for many opto-electronic and coatings technologies. Two of these ordering processes are microphase separation (MS), exhibited by block

Imaging Phase Separated Domains in Conducting Polymer Blend Films With Near-Field Scanning Optical Microscopy

August 1, 2001

Author(s)

Jeeseong C. Hwang, Lori S. Goldner, Alamgir Karim, C L. Gettinger

We report on the use of near-field scanning optical microscopy to study phase-separation in polymer films of polmer films of poly(styrene) and poly (3-octylthiophene). Transmission and transmitted fluorescence near-field scanning optical microscope (NSOM)

Single Molecule Probes

August 1, 2001

Author(s)

Lori S. Goldner, K D. Weston, W F. Heinz, Jeeseong Hwang, E S. DeJong, John P. Marino

The technology to rapidly manipulate and screen individual molecules lies at the frontier of measurement science and impacts emerging bio- and nano-technologies. Fundamental biological and chemical processes can now be probed with unprecedented detail, one

Newton's Rings in Near-Field Optics

January 1, 2001

Author(s)

Lori S. Goldner, Jeeseong Hwang, Garnett W. Bryant, Michael J. Fasolka, P Absil, J V. Hryniewicz, F G. Johnson, H Shen, P T. Ho

We show how Newton's rings manifest themselves in near-field scanning optical microscopy and discuss how this effect can be used with topographic imaging to measure correlated roughness of thin films. In conventional optics, transmission through a thin