Excited states of polysilanes: High-resolution spectroscopy and molecular modeling

1991 ◽  
Vol 1 (3) ◽  
pp. 343-360 ◽  
Author(s):  
A. Tilgner ◽  
H. P. Trommsdorff ◽  
J. M. Zeigler ◽  
R. M. Hochstrasser
RSC Advances ◽  
2016 ◽  
Vol 6 (58) ◽  
pp. 53454-53468 ◽  
Author(s):  
Piyali Mitra ◽  
Uttam Pal ◽  
Nakul Chandra Maiti ◽  
Anirban Ghosh ◽  
Anirban Bhunia ◽  
...  

Photophysical studies on binding interactions of 9-aminoacridine hydrochloride hydrate (9AA-HCl) with serum proteins using low and high resolution spectroscopic techniques in conjunction with molecular modeling.


2004 ◽  
Vol 22 (3) ◽  
pp. 199-202 ◽  
Author(s):  
MARCO BELLINI ◽  
STEFANO CAVALIERI ◽  
CHIARA CORSI ◽  
ROBERTO ERAMO ◽  
MARZIA MATERAZZI

We present a Ramsey technique using high-order harmonics for high-resolution atomic spectroscopy in the extreme ultraviolet. Pairs of time-delayed and phase-coherent harmonic pulses generated by the interaction of ultrashort and intense laser pulses with a noble gas are used to study excited states of krypton.


1988 ◽  
Vol 102 ◽  
pp. 41
Author(s):  
E. Silver ◽  
C. Hailey ◽  
S. Labov ◽  
N. Madden ◽  
D. Landis ◽  
...  

The merits of microcalorimetry below 1°K for high resolution spectroscopy has become widely recognized on theoretical grounds. By combining the high efficiency, broadband spectral sensitivity of traditional photoelectric detectors with the high resolution capabilities characteristic of dispersive spectrometers, the microcalorimeter could potentially revolutionize spectroscopic measurements of astrophysical and laboratory plasmas. In actuality, however, the performance of prototype instruments has fallen short of theoretical predictions and practical detectors are still unavailable for use as laboratory and space-based instruments. These issues are currently being addressed by the new collaborative initiative between LLNL, LBL, U.C.I., U.C.B., and U.C.D.. Microcalorimeters of various types are being developed and tested at temperatures of 1.4, 0.3, and 0.1°K. These include monolithic devices made from NTD Germanium and composite configurations using sapphire substrates with temperature sensors fabricated from NTD Germanium, evaporative films of Germanium-Gold alloy, or material with superconducting transition edges. A new approache to low noise pulse counting electronics has been developed that allows the ultimate speed of the device to be determined solely by the detector thermal response and geometry. Our laboratory studies of the thermal and resistive properties of these and other candidate materials should enable us to characterize the pulse shape and subsequently predict the ultimate performance. We are building a compact adiabatic demagnetization refrigerator for conveniently reaching 0.1°K in the laboratory and for use in future satellite-borne missions. A description of this instrument together with results from our most recent experiments will be presented.


Author(s):  
Dominik Wehrli ◽  
Matthieu Génévriez ◽  
Frédéric Merkt

We present a new method to study doubly charged molecules relying on high-resolution spectroscopy of the singly charged parent cation, and report on the first spectroscopic characterization of a thermodynamically stable diatomic dication, MgAr2+.


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