Zobrazeno 1 - 10
of 92
pro vyhledávání: '"William L. Schaich"'
Autor:
Joseph Holmes, Mi Zhang, Tine Greibe, William L. Schaich, Stephen C. Jacobson, Bogdan Dragnea
Publikováno v:
Nanoscale Advances. 5:2045-2053
Complex light intensity patterns formed by closely-spaced multiple apertures in a metal film can be faithfully mapped with sub-wavelength resolution, from near-field to far-field, by interferometric lithography.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdab30f7b682f1c5f6a3716ebd0bd52b
https://doi.org/10.1039/d2na00570k
https://doi.org/10.1039/d2na00570k
Autor:
Joseph Holmes, Arathi Anil Sushma, Irina B. Tsvetkova, William L. Schaich, Richard D. Schaller, Bogdan Dragnea
Publikováno v:
J Phys Chem Lett
Radiation brightening was recently observed in a multifluorophore-conjugated brome mosaic virus (BMV) particle at room temperature under pulsed excitation. On the basis of its nonlinear dependence on the number of chromophores, the origins of the phe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81976f7973562d2558177ddd6293a27b
https://doi.org/10.1021/acs.jpclett.2c00262
https://doi.org/10.1021/acs.jpclett.2c00262
Publikováno v:
ACS nano.
The photothermally induced nanoscale dynamics of rapid melting and resolidification of a thin layer of molecular material surrounding a nanoparticle is examined in real time by an all-optical approach. The method employs pulsed periodic modulation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::092a815966cf9c031279102dd75e6863
https://pubmed.ncbi.nlm.nih.gov/36546561
https://pubmed.ncbi.nlm.nih.gov/36546561
Publikováno v:
Journal of the Optical Society of America A. 39:1468
Orbital dynamics of a dielectric microparticle in air using a lensed counter-propagating dual-beam trap was studied experimentally and by numerical simulations. Relationships between the dynamic parameters, trap geometry, and optical power were exami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bb1bc59b40b98a9d6b905298b2c6375
https://doi.org/10.1364/josaa.459301
https://doi.org/10.1364/josaa.459301
Autor:
Joseph Che Yen Wang, William L. Schaich, Arathi Anil Sushma, Irina B. Tsvetkova, Bogdan Dragnea
Publikováno v:
ACS nano. 13(10)
Concentration quenching is a well-known challenge in many fluorescence imaging applications. Here, we show that the optical emission from hundreds of chromophores confined onto the surface of a 28 nm diameter virus particle can be recovered under pul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48afc4a2ad6ea69f94de6203328edd42
https://pubmed.ncbi.nlm.nih.gov/31335115
https://pubmed.ncbi.nlm.nih.gov/31335115
Autor:
Xinlei Huang, William L. Schaich, Irina B. Tsvetkova, Bogdan Dragnea, Vincent M. Rotello, Maryam Zahedian
Publikováno v:
The Journal of Physical Chemistry B. 120:5896-5906
The strong configuration dependence of collective surface plasmon resonances in an array of metal nanoparticles provides an opportunity to develop a bioinspired tool for sensing mechanical deformations in soft matter at the nanoscale. We study the fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d98f6dd60559fc8c918202ab18cd6472
https://doi.org/10.1021/acs.jpcb.6b01023
https://doi.org/10.1021/acs.jpcb.6b01023
Autor:
Jeroen Plomp, A.A. van Well, Michael R. Fitzsimmons, Rana Ashkar, Roger Pynn, V.O. de Haan, William L. Schaich, Robert M. Dalgliesh
Publikováno v:
Journal of Applied Crystallography. 44:958-965
Dynamical theory (DT) calculations have been successfully developed to explain neutron spin-echo resolved grazing-incidence scattering from diffraction gratings. The theory, without any adjustable parameters, has been shown in previous publications t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e3e0cb8597684df93fdb73eb0903ab8
https://doi.org/10.1107/s0021889811032730
https://doi.org/10.1107/s0021889811032730
Autor:
Roger Pynn, A. L. Washington, V. R. Shah, William L. Schaich, P. Stonaha, W. T. Lee, Brian B. Maranville, Michael R. Fitzsimmons, Charles F. Majkrzak, Rana Ashkar
Publikováno v:
Journal of Applied Crystallography. 43:455-465
Neutrons scattered or reflected from a diffraction grating are subject to a periodic potential analogous to the potential experienced by electrons within a crystal. Hence, the wavefunction of the neutrons can be expanded in terms of Bloch waves and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3731752af71f3d2350b7b1331a7dbd0c
https://doi.org/10.1107/s0021889810010642
https://doi.org/10.1107/s0021889810010642
Publikováno v:
Nano Letters. 5:1227-1230
A general method to map the 3D spatial distribution of light emerging from nanoscale apertures is presented that uses photolithographic techniques to create polymer replicas of the intensity distribution. The resulting features varied with aperture d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1931c39a7f7d5a5b886baae1fdb5f7
https://doi.org/10.1021/nl050891e
https://doi.org/10.1021/nl050891e
Autor:
Gerburg Schider, Andreas Hohenau, Harald Ditlbacher, Franz R. Aussenegg, Alfred Leitner, Joachim R. Krenn, William L. Schaich
Publikováno v:
Europhysics Letters (EPL). 69:538-543
We report on near-field measurements and calculations of the optical intensity close to rod-shaped gold nanoparticles excited at a multipolar plasmon resonance. Our results reveal a distinct optical near-field pattern and show that multipolar plasmon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34e8c7d5d1227894201dddeade8c2b12
https://doi.org/10.1209/epl/i2004-10388-9
https://doi.org/10.1209/epl/i2004-10388-9