Saturation characteristics of SF6 absorption at the 10.4 μm band of CO2

1977 ◽  
Vol 55 (10) ◽  
pp. 849-854 ◽  
Author(s):  
B. K. Garside ◽  
R. S. Taylor ◽  
E. A. Ballik
Keyword(s):  
Nonlinear Absorption ◽  
Radiation Intensity ◽  
Pulse Shaping ◽  
Incident Radiation ◽  
Absorption Properties ◽  
Molecular Parameters ◽  
Distinctive Features ◽  
P 16 ◽  
Level Model ◽  
Incident Radiation Intensity

Measurements were made of the saturation characteristics of the SF6 absorption at the 10.4 μm band of CO2, using a pulsed CO2 laser. It is shown that the observed nonlinear absorption properties can be divided into three characteristic regions, namely P(12)–P(16), P(18)–P(22), and P(24)–P(30), each of which has distinctive features in the measured transmission as a function of incident radiation intensity. In each region, this transmission behaviour, together with associated dynamical effects such as pulse shaping, are amenable to interpretation by means of a four-level model for the SF6 absorption. The relevant molecular parameters are determined by comparison of theory with experiment.

scholarly journals Модификация спектров фотопроводимости в композитных структурах ZnO-квантовые точки CdSe под действием дополнительного фотовозбуждения

2018 ◽  
Vol 52 (7) ◽  
pp. 763
Author(s):  
К.А. Дроздов ◽  
И.В. Крылов ◽  
А.С. Чижов ◽  
М.Н. Румянцева ◽  
Л.И. Pябова ◽  
...  
Keyword(s):  
Radiation Intensity ◽  
Spectral Region ◽  
Incident Radiation ◽  
Visible Spectral Region ◽  
Cds Nanocrystals ◽  
Incident Radiation Intensity ◽  
Wavelength Distribution

AbstractThe incorporation of CdS nanocrystals into a porous ZnO matrix results in sensitization of the composite in the visible spectral region. Studies of the photoconductivity spectra upon variable external illumination show that the spectra undergo reversible transformations. It is shown that the shape of the peak and the position of the local photoconductivity maximum corresponding to nanocrystals depend on the wavelength distribution of the incident radiation intensity. The mechanisms responsible for the process are discussed.

Optimization of Focusing Solar-Collector Design

1963 ◽  
Vol 85 (3) ◽  
pp. 221-228 ◽  
Author(s):  
G. O. G. Lo¨f ◽  
J. A. Duffie
Keyword(s):  
Optical Properties ◽  
Radiation Intensity ◽  
Solar Collector ◽  
Loss Rate ◽  
Incident Radiation ◽  
Area Ratio ◽  
Thermal Loss ◽  
Economic Optimization ◽  
Useful Heat ◽  
Incident Radiation Intensity

A set of general graphical relationships has been developed for establishing the receiver-reflector area ratio which will provide the maximum useful heat delivery from a focusing collector. The method, applied to paraboloids and parabolic cylinders, gives the optimum area ratio in terms of incident radiation intensity, optical properties (including precision of reflector), and thermal loss rate. Use of the method for design and for evaluation of existing reflectors is illustrated; its use in economic optimization will be dependent on availability of adequate cost data.

scholarly journals The photoluminescence, field emission and femtosecond nonlinear absorption properties of Al-doped ZnO nanowires, nanobelts, and nanoplane-cone morphologies

RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34547-34558 ◽  
Author(s):  
Yu-Tong Cao ◽  
Yu Cai ◽  
Cheng-Bao Yao ◽  
Sheng-Bin Bao ◽  
Yue Han
Keyword(s):  
Field Emission ◽  
Nonlinear Absorption ◽  
Zno Nanowires ◽  
Absorption Properties ◽  
Doped Zno

Al-doped ZnO (AZO) nanowires, nanobelts and nanoplane-cone nanostructures have been successfully synthesized.

scholarly journals Nonlinear absorption properties and excited-state charge-transfer dynamics of Er doped ZnO films

2018 ◽  
Vol 8 (11) ◽  
pp. 3262 ◽  
Author(s):  
Si-Qiu Li ◽  
Cheng-Bao Yao ◽  
Yu Cai ◽  
Yue Han ◽  
Ke-Xin Zhang ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Nonlinear Absorption ◽  
Zno Films ◽  
Absorption Properties ◽  
Doped Zno ◽  
Charge Transfer Dynamics ◽  
Er Doped ◽  
State Charge

Broadband nonlinear absorption properties of two-dimensional hexagonal tellurene nanosheets

Nanoscale ◽  
2019 ◽  
Vol 11 (36) ◽  
pp. 17058-17064 ◽  
Author(s):  
Fang Zhang ◽  
Guowei Liu ◽  
Zhengping Wang ◽  
Tianhong Tang ◽  
Xinle Wang ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Nonlinear Absorption ◽  
Two Dimensional ◽  
Absorption Cross ◽  
Infrared Band ◽  
Absorption Properties ◽  
Potential Applications

Low saturable intensity, large TPA coefficient and the absorption cross-section demonstrate that tellurene is an advanced broadband nonlinear absorption material and has potential applications in the nonlinear optics field, especially in the infrared band.

Synthesis, structure and femtosecond nonlinear absorption properties of Ce-ZnO films

2020 ◽  
Vol 502 ◽  
pp. 144133 ◽  
Author(s):  
Zi-Wen Chen ◽  
Cheng-Bao Yao ◽  
Yue Han ◽  
Sheng-Bin Bao ◽  
Guo-Quan Jiang ◽  
...  
Keyword(s):  
Nonlinear Absorption ◽  
Zno Films ◽  
Absorption Properties

Nonlinear absorption properties of CdSe/ZnS quantum dots and the application: passively Q-switched Nd:GdVO4 laser at 1.06 μm

2019 ◽  
Vol 12 (2) ◽  
pp. 022001 ◽  
Author(s):  
Han Pan ◽  
Hongwei Chu ◽  
Shengzhi Zhao ◽  
Ying Li ◽  
Dechun Li
Keyword(s):  
Quantum Dots ◽  
Nonlinear Absorption ◽  
Absorption Properties

Synthesis and tunable nonlinear absorption properties of Zn3Mo2O9 nanosheet ceramic material

2020 ◽  
Vol 99 ◽  
pp. 109570 ◽  
Author(s):  
Kun Zhang ◽  
Jie He ◽  
Rongren Shen ◽  
Xuguang Sun ◽  
Qiuyun Ouyang ◽  
...  
Keyword(s):  
Ceramic Material ◽  
Nonlinear Absorption ◽  
Absorption Properties
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