Zobrazeno 1 - 10
of 25
pro vyhledávání: '"George T. Paloczi"'
Publikováno v:
The Journal of Physical Chemistry B. 108:8606-8613
Polymeric integrated optical devices, including microring resonator optical filters and Mach−Zehnder interferometer modulators, fabricated by electron-beam lithography and soft lithography are considered in this article. Microring resonator optical
Publikováno v:
Advanced Materials. 16:44-48
Autor:
James B. Thompson, Daniel E. Morse, Johannes H. Kindt, Galen D. Stucky, Bettye L. Smith, George T. Paloczi, Martina Michenfelder, Paul K. Hansma
Publikováno v:
Biophysical Journal. 79(6):3307-3312
The mixture of EDTA-soluble proteins found in abalone nacre are known to cause the nucleation and growth of aragonite on calcite seed crystals in supersaturated solutions of calcium carbonate. Past atomic force microscope studies of the interaction o
Publikováno v:
Journal of Crystal Growth. 211:116-121
Marine organisms have a unique ability to produce complex composite structures at ambient temperature and pressure using inorganic materials found in nature such as calcium carbonate and organic material (e.g. proteins and polysaccharides) produced a
Autor:
Bettye L. Smith, Matthias Rief, Michael Richter, Lía I. Pietrasanta, Mario B. Viani, Kevin W. Plaxco, Hermann E. Gaub, Andrew Cleland, Paul K. Hansma, Tilman E. Schäffer, Helen G. Hansma, James B. Thompson, George T. Paloczi
Publikováno v:
Review of Scientific Instruments. 70:4300-4303
Small cantilevers allow for faster imaging and faster force spectroscopy of single biopolymers than previously possible because they have higher resonant frequencies and lower coefficients of viscous damping. We have used a new prototype atomic force
Publikováno v:
IEEE Photonics Technology Letters. 16:2496-2498
We use soft lithography replica molding to fabricate unclad polystyrene (PS) and clad SU-8 microring resonator filters. The PS resonator has an intrinsic quality factor of 1.0/spl times/10/sup 4/ at /spl lambda/=1.55 /spl mu/m, while that of the SU-8
Publikováno v:
Applied Physics Letters. 85:1662-1664
A Mach-Zehnder electro-optic polymer amplitude modulator is fabricated by a simple and high-throughput soft-stamp replica-molding technique. The modulator structure incorporates the highly nonlinear and stable chromophore, AJL8, doped in amorphous po
Publikováno v:
IEEE Photonics Technology Letters. 16:515-517
We investigate the wavelength insensitivity and fabrication error tolerance of the relative output amplitude and phase for a new type of optical coupler. This new coupler overcomes the long-length requirements of adiabatic couplers, yet achieves simi
Autor:
Helen G. Hansma, John C. Sitko, Paul K. Hansma, Douglas Thrower, George T. Paloczi, Lía I. Pietrasanta, Bettye L. Smith, Mario B. Viani, Roxana Golan
Publikováno v:
Journal of biomolecular structuredynamics. 17
Seven recent highlights are presented from atomic force microscopy (AFM) of DNA in this lab. The first two involve advances in the observation of enzymatic reactions in near-physiological solutions. E. coli RNA polymerase was observed to process alon
Publikováno v:
Optics express. 11(20)
We have developed a soft lithography method to replicate polymeric integrated optical devices. In this method, the master device and the molded replica are made of the same materials, allowing direct comparison. To evaluate the quality of the replica