An assignment of the structured features in the Hartley band absorption spectrum of ozone

1994 ◽  
Vol 100 (5) ◽  
pp. 3407-3414 ◽  
Author(s):  
Jeffrey A. Joens
1999 ◽  
Vol 19 (1-4) ◽  
pp. 71-74 ◽  
Author(s):  
Xuming Zheng ◽  
David Lee Phillips

We have obtained A-band absorption resonance Raman spectra of 1-chloro-2- iodoethane in cyclohexane solution. We have done preliminary time-dependent wavepacket calculations to simulate the resonance Raman intensities and absorption spectrum in order to learn more about the short-time photodissociation dynamics. We compare our preliminary results for 1-chloro-2-iodoethane with previous resonance Raman results for iodoethane and find that there appears to be more motion along non- C—I stretch modes for 1-chloro-2-iodoethane than for iodoethane. This is consistent with results of TOF photofragment spectroscopy experiments which indicate much more internal excitation of the photoproducts from 1-chloro-2-iodoethane photodissociation than the photoproducts from iodoethane photodissociation.


In some previous papers it has been shown by the author and others that saturated compounds of most substances in the vapour state show continuous absorption. A typical example is SO 3 -vapour, which was recently studied by the author and which enabled him to make an accurate estimation of the heat of dissociation of oxygen. In the present work, the absorption spectrum of N 2 O was investigated with a view to determining the heat of dissociation of nitrogen. Leifson was the first to investigate the absorption spectrum of N 2 O gas and found that the gas shows no selective absorption in the Schumann region. He states that the absorption is in the form of two continuous bands, the first extending from λ 2000 to λ 1680 and the second from λ 1550 beyond the range of observation. Recently Wulf and Melvin showed that when N 2 O is illuminated with light of wave-length λ 2300, it is decomposed photochemically into NO and N; they also noticed that N 2 O possesses no band absorption.


1970 ◽  
Vol 33 (3) ◽  
pp. 381-406 ◽  
Author(s):  
M.A.A Clyne ◽  
J.A Coxon

2016 ◽  
Vol 4 (3) ◽  
pp. 513-520 ◽  
Author(s):  
Yun-Ming Sung ◽  
Ying-Chih Lai ◽  
Ming-Fong Tsai ◽  
Hsing-Hua Hsieh ◽  
Min-Han Yang ◽  
...  

A large enhancement in the performance of solar cells, arising from plasmonic nanomaterials with a broad band absorption spectrum, is proposed.


2000 ◽  
Vol 656 ◽  
Author(s):  
Makoto Nakanishi ◽  
Tomonori Shibuya ◽  
Tatsuo Fujii ◽  
Jun Takada

ABSTRACTIn order to develop wide-band microwave absorbers we tried to prepare composite absorbers between the magnetic loss (Ni-Zn-ferrite) and the dielectric loss (SiC) materials. The dry or wet mixtures of Ni-Zn-ferrite and polycarbosilane (PCS) were cured in air and were then subjected to pyrolysis forming of the ferrite composites. The composites produced by the wet mixing had granular structure: the PCS surrounding the ferrite particles suppressed the sintering and the grain growth of the ferrite composites during pyrolysis. The matching frequency due to the magnetic loss linearly increased with increasing the PCS content. Moreover the ferrite/SiC hemi-crystallized composite cured at 473 K for 24 hours showed wide-band absorption spectrum having the both magnetic and dielectric losses.


1986 ◽  
Vol 33 (8) ◽  
pp. 5363-5367 ◽  
Author(s):  
G. A. Niklasson ◽  
D. E. Aspnes ◽  
H. G. Craighead

2015 ◽  
Vol 142 (3) ◽  
pp. 034302 ◽  
Author(s):  
Justyna Wójcik ◽  
Alicja Ratuszna ◽  
Jerzy Peszke ◽  
Roman Wrzalik

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