EXCITED STATE DYNAMICS OF RETINAL PROTEINS AS STUDIED BY FOURIER TRANSFORM OF OPTICAL ABSORPTION SPECTRUM—II. THEORETICAL ANALYSIS OF WAVEPACKET PROPAGATION OF RHODOPSIN

1992 ◽  
Vol 56 (6) ◽  
pp. 989-993 ◽  
Author(s):  
Toshiaki Kakitani ◽  
Narifumi Matsuda ◽  
Yasuyo Hatano ◽  
Yoshinori Shichida ◽  
Hiroko Kakitani
Keyword(s):  
Absorption Spectrum ◽  
Fourier Transform ◽  
Excited State ◽  
Theoretical Analysis ◽  
Optical Absorption ◽  
Optical Absorption Spectrum ◽  
Excited State Dynamics ◽  
Retinal Proteins ◽  
Wavepacket Propagation

Article

1998 ◽  
Vol 76 (4) ◽  
pp. 411-413
Author(s):  
Yixing Zhao ◽  
Gordon R Freeman
Keyword(s):  
Absorption Spectrum ◽  
Optical Absorption ◽  
Temperature Dependence ◽  
Optical Absorption Spectrum ◽  
Infrared Light ◽  
Solvated Electron ◽  
Solvated Electrons ◽  
Tert Butanol ◽  
Solvent Dependence ◽  
Increasing Temperature

The energy and asymmetry of the optical absorption spectrum of solvated electrons, es- , change in a nonlinear fashion on changing the solvent through the series HOH, CH3OH, CH3CH3OH, (CH3)2CHOH, (CH3)3COH. The ultimate, quantum-statistical mechanical, interpretation of solvated electron spectra is needed to describe the solvent dependence. The previously reported optical spectrum of es- in tert-butanol was somewhat inaccurate, due to a small amount of water in the alcohol and to limitations of the infrared light detector. The present note records the remeasured spectrum and its temperature dependence. The value of the energy at the absorption maximum (EAmax) is 155 zJ (0.97 eV) at 299 K and 112 zJ (0.70 eV) at 338 K; the corresponding values of G epsilon max (10-22 m2 aJ-1) are 1.06 and 0.74. These unusually large changes are attributed to the abnormally rapid decrease of dielectric permittivity of tert-butanol with increasing temperature. The band asymmetry at 299 K is Wb/Wr = 1.8.Key words: optical absorption spectrum, solvated electron, solvent effects, tert-butanol, temperature dependence.

scholarly journals Monitoring mechanical motion of carbon nanotube based nanomotor by optical absorption spectrum

2016 ◽  
Vol 109 (26) ◽  
pp. 263104 ◽  
Author(s):  
Baomin Wang ◽  
Xuewei Cao ◽  
Zhan Wang ◽  
Yong Wang ◽  
Kaihui Liu
Keyword(s):  
Absorption Spectrum ◽  
Carbon Nanotube ◽  
Optical Absorption ◽  
Optical Absorption Spectrum ◽  
Mechanical Motion
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