Internal excitation of methyl radicals produced in the photolysis of acetone at 193 nm and the collisional enhancement of the infrared emission intensity in the .nu.3 spectral region

1993 ◽  
Vol 97 (27) ◽  
pp. 6974-6978 ◽  
Author(s):  
Fida Mohammad ◽  
Vernon R. Morris ◽  
A. Clay Jones ◽  
William M. Jackson
Keyword(s):  
Spectral Region ◽  
Emission Intensity ◽  
Infrared Emission ◽  
Methyl Radicals ◽  
Internal Excitation ◽  
193 Nm

Photodissociation Dynamics of Vinyl Chloride Investigated with a Pulsed Slit-Jet and Time-Resolved Fourier-Transform Spectroscopy

2004 ◽  
Vol 57 (12) ◽  
pp. 1161 ◽  
Author(s):  
Mohammed Bahou ◽  
Yuan-Pern Lee
Keyword(s):  
Fourier Transform ◽  
Vinyl Chloride ◽  
Flow System ◽  
Supersonic Jet ◽  
Infrared Emission ◽  
Time Resolved ◽  
Type Distribution ◽  
Trajectory Calculations ◽  
Rotational Distribution ◽  
193 Nm

Following photodissociation of vinyl chloride seeded in a He supersonic jet at 193 nm, rotationally resolved infrared emission of HCl (v) are recorded to yield nascent rotational and vibrational distributions. Preliminary results show that the rotational distribution of HCl free from rotational quenching deviates slightly from Boltzmann-type distribution and agrees well with trajectory calculations; a portion of the low-J component observed previously in a flow system is attributed to quenching. The implications for photodissociation dynamics are discussed.

High near-infrared emission intensity of Er3+-doped zirconium oxide films on a Si(100) substrate

2013 ◽  
Author(s):  
V. A. G. Rivera ◽  
F. A. Ferri ◽  
J. L. Clabel H. ◽  
M. K. Kawamura ◽  
M. A. Pereira-da-Silva ◽  
...  
Keyword(s):  
Emission Intensity ◽  
Zirconium Oxide ◽  
Near Infrared ◽  
Oxide Films ◽  
Infrared Emission ◽  
Near Infrared Emission

Luminescence Properties of Er3+/Tm3+-Doped Ga2O3-Bi2O3-PbO-GeO2 System Glasses

2011 ◽  
Vol 399-401 ◽  
pp. 982-986
Author(s):  
Jin Liu ◽  
Dong Mei Shi ◽  
Ying Gang Zhao ◽  
Xiao Feng Wang
Keyword(s):  
Emission Intensity ◽  
Near Infrared ◽  
Emission Spectra ◽  
Upconversion Emission ◽  
Infrared Emission ◽  
Optical Devices ◽  
Luminescence Properties ◽  
Red Emission ◽  
Fiber Optical ◽  
Near Infrared Emission

The visible and near infrared emission spectra of Er3+/Tm3+-doped Ga2O3-Bi2O3-PbO-GeO2(GBPG) glasses excited at 808 nm are experimentally investigated. The results reveal that 1.53 µm emission were enhanced with an increase of Er3+concentration. Furthermore, the incorporation of Er3+into Tm3+-doped systems has also resulted in intense 522, 545 and 693nm upconversion emission intensity and an weak 660 nm red emission. The possible mechanism and related discussions on this phenomenon have been presented. The results show that Er3+/Tm3+-codoped GBPG glass may be a promising materials for developing laser and fiber optical devices.

An efficient dye-sensitized NIR emissive lanthanide nanomaterial and its application in fluorescence-guided peritumoral lymph node dissection

Nanoscale ◽  
2018 ◽  
Vol 10 (26) ◽  
pp. 12573-12581 ◽  
Author(s):  
Qingyun Liu ◽  
Xianmei Zou ◽  
Yibing Shi ◽  
Bin Shen ◽  
Cong Cao ◽  
...  
Keyword(s):  
Lymph Node ◽  
Lymph Node Dissection ◽  
Emission Intensity ◽  
Near Infrared ◽  
Infrared Emission ◽  
Node Dissection ◽  
Dye Sensitized ◽  
Near Infrared Emission

Through combining Cy7 and NaYbF4@NaYF4:60%Nd together to form a dye-sensitized system, the near-infrared emission intensity of Yb was significantly enhanced.

Preparation, growth mechanism, size manipulation and near-infrared luminescence enhancement of β-NaYF4:Nd3+ microcrystals via Ca2+ doping

CrystEngComm ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 741-748 ◽  
Author(s):  
Qinqin Shao ◽  
Hong Zhang ◽  
Jiangyun Dai ◽  
Chao Yang ◽  
Xiaoxu Chen ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Emission Intensity ◽  
Near Infrared ◽  
Infrared Emission ◽  
Luminescence Enhancement ◽  
Infrared Luminescence ◽  
Near Infrared Emission

The near-infrared emission intensity of NaYF4:3% Nd3+ doped with 20 mol% Ca2+ is 3 times that of the Ca2+-free samples.

Infrared emission from dissociative excitation of HONO2 at 193 nm

1991 ◽  
Vol 45 (3) ◽  
pp. 139-144 ◽  
Author(s):  
Jun Shan ◽  
Masako Suto ◽  
Y.G. Jin ◽  
L.C. Lee
Keyword(s):  
Infrared Emission ◽  
Dissociative Excitation ◽  
193 Nm
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