Three-dimensional optical polarization tomography of single molecules

2003 ◽  
Vol 118 (21) ◽  
pp. 9824-9829 ◽  
Author(s):  
Michael Prummer ◽  
Beate Sick ◽  
Bert Hecht ◽  
Urs P. Wild
Keyword(s):  
Single Molecules ◽  
Three Dimensional ◽  
Optical Polarization ◽  
Polarization Tomography

scholarly journals Borehole resistivity and induced polarization tomography at the Canadian Shield for Mineral Exploration in north-western Sudbury

2020 ◽  
Vol 168 ◽  
pp. 00002
Author(s):  
Mosaad Ali ◽  
Shulin Sun ◽  
Wei Qian ◽  
Abdou Dodo Bohari ◽  
Dusabemariya Claire ◽  
...  
Keyword(s):  
Mineral Exploration ◽  
Three Dimensional ◽  
Induced Polarization ◽  
Canadian Shield ◽  
High Resolution Data ◽  
Polarization Tomography ◽  
Data Survey ◽  
Thick Overburden ◽  
Complex Geology ◽  
North Western

Mineral exploration in the Canadian shield is a major challenge nowadays. This is because of the thick overburden cover and complex geology. Borehole tomography using resistivity and induced polarization (BHDCIP) method has a big advantage here due to that the data is acquired underneath the cover and data quality, in general, is superior to that acquired at the surface. BHDCIP provides good resistivity and chargeability data, which can identify mineralization easily. In this study, the BHDCIP survey with high-resolution data was carried out to identify mineralization zones in the McCreedy West zone, north-western Sudbury, Ontario, Canada. Two and three-dimensional (2-D and 3-D) inversion results of three boreholes clearly revealed the mineralization zones and that harmonised with previous geological studies in the study area. The BHDCIP method provided insight and developed an informative subsurface map to identify the mineralization zones, thus proving it as a beneficial tool used for mineral exploration in complex geology with a minimal data survey and an irregular geometrical distribution.

Two-Photon Microscopy of Single Molecules

2000 ◽  
Vol 6 (S2) ◽  
pp. 802-803
Author(s):  
J. T. Fourkas ◽  
M. J. R. Previte ◽  
R. A. Farrer ◽  
C. Olson ◽  
L. A. Peyser
Keyword(s):  
Near Field ◽  
Single Molecules ◽  
Three Dimensional ◽  
Excitation Beam ◽  
Two Photon Microscopy ◽  
Two Photon ◽  
Higher Power ◽  
Excitation Techniques ◽  
Field Excitation ◽  
Heterogeneous Ensemble

The ability to observe the fluorescence arising from single molecules has revolutionized our ability to study the structure and dynamics of materials on a microscopic level and to probe the properties of individual members of a heterogeneous ensemble. A variety of near-field and far-field excitation techniques have been employed to study single molecules. Multiphoton excitation (MPE) techniques have a number of advantages that make them particularly attractive for singlemolecule detection. First, because the excitation and fluorescence wavelengths are significantly different from one another, Rayleigh and Raman scattering can easily be filtered out, leading to a low number of background counts. Second, because the probability for MPE depends on the excitation intensity to the second or higher power, the excitation is localized to the point in space where the excitation beam is most tightly focussed, thus providing three-dimensional resolution.

Three-Dimensional Orientations of Polymer-Bound Single Molecules

1999 ◽  
Vol 103 (16) ◽  
pp. 3053-3056 ◽  
Author(s):  
Andrew P. Bartko ◽  
Robert M. Dickson
Keyword(s):  
Single Molecules ◽  
Three Dimensional

Three-Dimensional Imaging of Single Molecules Solvated in Pores of Poly(acrylamide) Gels

Science ◽  
1996 ◽  
Vol 274 (5289) ◽  
pp. 966-968 ◽  
Author(s):  
Robert M. Dickson ◽  
D. J. Norris ◽  
Yih-Ling Tzeng ◽  
W. E. Moerner
Keyword(s):  
Single Molecules ◽  
Three Dimensional ◽  
Three Dimensional Imaging ◽  
Poly Acrylamide

scholarly journals Three-dimensional quantum polarization tomography of macroscopic Bell states

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Bhaskar Kanseri ◽  
Timur Iskhakov ◽  
Ivan Agafonov ◽  
Maria Chekhova ◽  
Gerd Leuchs
Keyword(s):  
Three Dimensional ◽  
Bell States ◽  
Polarization Tomography ◽  
Quantum Polarization

Determination of the three-dimensional orientation of single molecules

2008 ◽  
Vol 33 (9) ◽  
pp. 1020 ◽  
Author(s):  
Matthew R. Foreman ◽  
Carlos Macías Romero ◽  
Peter Török
Keyword(s):  
Single Molecules ◽  
Three Dimensional
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