Absolute Calibration of Electric Fields Using Stark Spectroscopy

1995 ◽  
Vol 75 (19) ◽  
pp. 3402-3405 ◽  
Author(s):  
G. D. Stevens ◽  
C.-H. Iu ◽  
T. Bergeman ◽  
H. J. Metcalf ◽  
I. Seipp ◽  
...  
Keyword(s):  
Electric Fields ◽  
Absolute Calibration ◽  
Stark Spectroscopy

scholarly journals Vibrational Stark Spectroscopy Directly Probes Electric Fields in Proteins

2013 ◽  
Vol 104 (2) ◽  
pp. 355a
Author(s):  
Steven Boxer ◽  
Sayan Bagchi ◽  
Stephen D. Fried ◽  
Nick Levinson ◽  
Miguel Saggu ◽  
...  
Keyword(s):  
Electric Fields ◽  
Stark Spectroscopy

Stark spectroscopy of mixed-valence systems

2007 ◽  
Vol 366 (1862) ◽  
pp. 33-45 ◽  
Author(s):  
Lisa N Silverman ◽  
Pakorn Kanchanawong ◽  
Thomas P Treynor ◽  
Steven G Boxer
Keyword(s):  
Charge Transfer ◽  
Electric Fields ◽  
Dipole Moments ◽  
Mixed Valence ◽  
Quantitative Information ◽  
Stark Spectroscopy ◽  
Charge Transfer Transition ◽  
Band Position ◽  
Stark Effects ◽  
Intervalence Charge Transfer

Many mixed-valence systems involve two or more states with different electric dipole moments whose magnitudes depend upon the charge transfer distance and the degree of delocalization; these systems can be interconverted by excitation of an intervalence charge transfer transition. Stark spectroscopy involves the interaction between the change in dipole moment of a transition and an electric field, so the Stark spectra of mixed-valence systems are expected to provide quantitative information on the degree of delocalization. In limiting cases, a classical Stark analysis can be used, but in intermediate cases the analysis is much more complex because the field affects not only the band position but also the intrinsic bandshape. Such non-classical Stark effects lead to widely different bandshapes. Several examples of both classes are discussed. Because electric fields are applied to immobilized samples, complications arise from inhomogeneous broadening, along with other effects that limit our ability to extract unique parameters in some cases. In the case of the radical cation of the special pair in photosynthetic reaction centres, where the mixed-valence system is in a very complex but structurally well-defined environment, a detailed analysis can be performed.

Doppler-free Stark spectroscopy of the second excited level of atomic hydrogen for measurements of electric fields

2007 ◽  
Vol 75 (1) ◽  
Author(s):  
Minja Gemišić Adamov ◽  
Andreas Steiger ◽  
Klaus Grützmacher ◽  
Joachim Seidel
Keyword(s):  
Electric Fields ◽  
Atomic Hydrogen ◽  
Excited Level ◽  
Stark Spectroscopy

scholarly journals Retrieving Storm Electric Fields from Aircraft Field Mill Data. Part II: Applications

2006 ◽  
Vol 23 (10) ◽  
pp. 1303-1322 ◽  
Author(s):  
W. J. Koshak ◽  
D. M. Mach ◽  
H. J. Christian ◽  
M. F. Stewart ◽  
M. G. Bateman
Keyword(s):  
Electric Fields ◽  
Computer Simulations ◽  
Lagrange Multiplier ◽  
Measurement Errors ◽  
Absolute Calibration ◽  
Fair Weather ◽  
Field Function ◽  
Side Constraint ◽  
Side Constraints ◽  
The Mean

Abstract The Lagrange multiplier theory developed in Part I of this study is applied to complete a relative calibration of a Citation aircraft that is instrumented with six field mill sensors. When side constraints related to average fields are used, the Lagrange multiplier method performs well in computer simulations. For mill measurement errors of 1 V m−1 and a 5 V m−1 error in the mean fair-weather field function, the 3D storm electric field is retrieved to within an error of about 12%. A side constraint that involves estimating the detailed structure of the fair-weather field was also tested using computer simulations. For mill measurement errors of 1 V m−1, the method retrieves the 3D storm field to within an error of about 8% if the fair-weather field estimate is typically within 1 V m−1 of the true fair-weather field. Using this type of side constraint and data from fair-weather field maneuvers taken on 29 June 2001, the Citation aircraft was calibrated. Absolute calibration was completed using the “pitch down method” developed in Part I, and conventional analyses. The resulting calibration matrices were then used to retrieve storm electric fields during a Citation flight on 2 June 2001. The storm field results are encouraging and agree favorably in many respects with results derived from earlier (iterative) techniques of calibration.

scholarly journals Retrieving Storm Electric Fields from Aircraft Field Mill Data. Part I: Theory

2006 ◽  
Vol 23 (10) ◽  
pp. 1289-1302 ◽  
Author(s):  
W. J. Koshak
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
High Voltage ◽  
Lagrange Multipliers ◽  
Optimization Problem ◽  
Absolute Calibration ◽  
Retrieval Process ◽  
Physical Constraints ◽  
Side Constraints ◽  
Derivatives Of

Abstract It is shown that the problem of retrieving storm electric fields from an aircraft instrumented with several electric field mill sensors can be expressed in terms of a standard Lagrange multiplier optimization problem. The method naturally removes aircraft charge from the retrieval process without having to use a high-voltage stinger and linearly combined mill data values. It allows a variety of user-supplied physical constraints (the so-called side constraints in the theory of Lagrange multipliers) and also helps improve absolute calibration. Additionally, this paper introduces an alternate way of performing the absolute calibration of an aircraft that has some benefits over conventional analyses. It is accomplished by using the time derivatives of mill and pitch data for a pitch down maneuver performed at high (>1 km) altitude. In Part II of this study, the above methods are tested and then applied to complete a full calibration of a Citation aircraft.

scholarly journals Polarization Stark spectroscopy for spatially resolved measurements of electric fields in the sheaths of ICRF antenna

2019 ◽  
Vol 90 (12) ◽  
pp. 123101
Author(s):  
A. Kostic ◽  
K. Crombé ◽  
R. Dux ◽  
M. Griener ◽  
R. Ochoukov ◽  
...  
Keyword(s):  
Electric Fields ◽  
Stark Spectroscopy ◽  
Spatially Resolved

Measurement method for electric fields based on Stark spectroscopy of argon atoms

2000 ◽  
Vol 62 (5) ◽  
pp. 7201-7208 ◽  
Author(s):  
V. P. Gavrilenko ◽  
H. J. Kim ◽  
T. Ikutake ◽  
J. B. Kim ◽  
Y. W. Choi ◽  
...  
Keyword(s):  
Electric Fields ◽  
Measurement Method ◽  
Stark Spectroscopy
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