Zobrazeno 1 - 10
of 421
pro vyhledávání: '"Urs P. Wild"'
Autor:
Dieter W. Pohl, Bettina Nechay, Lukas Novotny, Michael Pfeiffer, Claude Philipona, Taras Plakhotnik, Alois Renn, Abdeljalil Sayah, Joao-Manuel Segura, Beate Sick, Uwe Siegner, Guido Tarrach, Rüdiger Vahldieck, Urs P. Wild, Dieter Zeisel, Alfred J. Meixner, Olivier J.F. Martin, Fabienne Marquis-Weible, Hermann Bach, Martin A. Bopp, Volker Deckert, Pierre Descouts, Rolf Eckert, Hans-Joachim Güntherodt, Christian Hafner, Bert Hecht, Harry Heinzelmann, Thomas Huser, Mark Jobin, Ursula Keller, Thilo Lacoste, Patrick Lambelet, Renato Zenobi
Publikováno v:
CHIMIA, Vol 51, Iss 10 (1997)
Scanning near-field optical microscopy (SNOM) is an optical microscopy whose resolution is not bound to the diffraction limit. It provides chemical information based upon spectral, polarization and/or fluorescence contrast images. Details as small as
Externí odkaz:
https://doaj.org/article/aeecef7311c944e2a3063a8f07254b5f
Publikováno v:
CHIMIA, Vol 48, Iss 1-2 (1994)
Optical detection and spectroscopy of single molecules has recently been achieved in solids at very low temperature. Until now only three host-guest combinations have fulfilled the stringent requirements for high-resolution single-molecule spectra. A
Externí odkaz:
https://doaj.org/article/820570caa7144e86950fecd202e2512d
Autor:
Urs P. Wild
Publikováno v:
CHIMIA, Vol 47, Iss 10 (1993)
Externí odkaz:
https://doaj.org/article/d957fa57bee3499a887b1cf7759f1e08
Publikováno v:
Journal of Luminescence. 118:111-122
The structure of n -hexadecane polycrystalline matrices is examined with single molecule fluorescence spectroscopy at a temperature of 1.7 K. Some single chromophores exhibit spectral dynamics during experiments: their resonances either jump between
Publikováno v:
The Journal of Chemical Physics. 118:9824-9829
We apply the concept of tomography to polarization-sensitive optical microscopy of single fluorophores to determine the three-dimensional orientation of molecular absorption dipoles with isotropic sensitivity. Wide-field microscopy provides the oppor
Publikováno v:
Journal of Microscopy. 209:249-253
Summary The fluorescence lifetime and the fluorescence rate of single molecules are recorded as a function of the position of a Si 3 N 4 atomic force microscopy tip with respect to the molecule. We observe a decrease of the excited state lifetime and
Autor:
Bruno Michel, Maximilian Kreiter, André Bernard, Bert Hecht, Jean Philippe Renault, Urs P. Wild, Hans Rudolf Bosshard, Emmanuel Delamarche, Alexander Bietsch
Publikováno v:
The Journal of Physical Chemistry B. 107:703-711
Microcontact printing biomolecules from elastomeric micropatterned stamps onto surfaces is a versatile method to prepare surfaces for diagnostic applications. We show how to create patterns of proteins having a lengthscale lower than 100 nm using hig
Publikováno v:
Chemical Physics. 285:121-126
We report initial results on the observation of single Mg-tetrazaporphyrin molecules in solid xenon. Samples were prepared following the conventional matrix-isolation procedure. Essentially inhomogeneous broadening is characteristic for these spectra
Publikováno v:
The Journal of Chemical Physics. 117:9430-9433
The fluorescence lifetime of single DiI-dye molecules in a 20 nm polymer film on glass is measured as a function of the orientation of the absorption dipole moment. A strong dependence of the lifetime on the orientation of the dye molecules relative
Publikováno v:
Chemical Physics. 282:109-119
Stark effect experiments have been performed on terrylene (Tr) and 2.3.7.8-di-(peri-naphthylen)-pyren (DPNP) molecules, both, in a n-hexadecane Shpol'skii matrix by single molecule spectroscopy technique at low temperatures. Electric field was applie