Mechanism for Indirect Photo-ionization of Water Studied by Pump-Repump-Probe Spectroscopy

2010 ◽  
Author(s):  
Hristo Iglev ◽  
Martin K. Fischer ◽  
Alfred Laubereau
Keyword(s):  
Probe Spectroscopy ◽  
Photo Ionization ◽  
Ionization Of Water

Study of innershell photo-ionization-pumped L23M1 transition in Ca for the development of femtosecond X-ray laser

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-225-Pr2-231
Author(s):  
D. Kim ◽  
S. H. Son ◽  
J. H. Kim ◽  
Cs. Toth ◽  
C. P.J. Barty
Keyword(s):  
X Ray ◽  
Photo Ionization

ENERGY-RESOLVED ATOM PROBE SPECTROSCOPY OF FIELD-ADSORPTION PHENOMENA

1988 ◽  
Vol 49 (C6) ◽  
pp. C6-197-C6-202
Author(s):  
N. ERNST ◽  
G. BOZDECH
Keyword(s):  
Atom Probe ◽  
Probe Spectroscopy ◽  
Adsorption Phenomena

A Photo-ionization VOCs Sensor Developed the Resistance to Contamination of Electrode Surface

2011 ◽  
Vol 131 (2) ◽  
pp. 88-89
Author(s):  
Yasuyuki Hirano ◽  
Elito Kazawa ◽  
Yoshiaki Haramoto ◽  
Hiromichi Yoshida
Keyword(s):  
Electrode Surface ◽  
Photo Ionization

Limits of Charge Carrier Transport in Halide Perovskites Revealed by Optical-Pump Terahertz-Probe Spectroscopy

2019 ◽  
Author(s):  
Hannes Hempel ◽  
Andrei Petsiu ◽  
Martin Stolterfoht ◽  
Pascal Becker ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Transport ◽  
Charge Carrier Transport ◽  
Optical Pump ◽  
Halide Perovskites ◽  
Probe Spectroscopy

scholarly journals Ultrafast Electron/Energy Transfer and Intersystem Crossing Mechanisms in BODIPY-Porphyrin Compounds

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 312
Author(s):  
Yusuf Tutel ◽  
Gökhan Sevinç ◽  
Betül Küçüköz ◽  
Elif Akhuseyin Yildiz ◽  
Ahmet Karatay ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescence Spectra ◽  
Visible Region ◽  
Energy Transfer Mechanism ◽  
Free Base ◽  
Pump Probe ◽  
Harvesting Efficiency ◽  
Probe Spectroscopy ◽  
Absorption Features ◽  
Transfer Mechanisms

Meso-substituted borondipyrromethene (BODIPY)-porphyrin compounds that include free base porphyrin with two different numbers of BODIPY groups (BDP-TTP and 3BDP-TTP) were designed and synthesized to analyze intramolecular energy transfer mechanisms of meso-substituted BODIPY-porphyrin dyads and the effect of the different numbers of BODIPY groups connected to free-base porphyrin on the energy transfer mechanism. Absorption spectra of BODIPY-porphyrin conjugates showed wide absorption features in the visible region, and that is highly valuable to increase light-harvesting efficiency. Fluorescence spectra of the studied compounds proved that BODIPY emission intensity decreased upon the photoexcitation of the BODIPY core, due to the energy transfer from BODIPY unit to porphyrin. In addition, ultrafast pump-probe spectroscopy measurements indicated that the energy transfer of the 3BDP-TTP compound (about 3 ps) is faster than the BDP-TTP compound (about 22 ps). Since the BODIPY core directly binds to the porphyrin unit, rapid energy transfer was seen for both compounds. Thus, the energy transfer rate increased with an increasing number of BODIPY moiety connected to free-base porphyrin.

Dirac Surface Plasmons in Photoexcited Bismuth Telluride Nanowires : Optical Pump-Terahertz Probe Spectroscopy

Nanoscale ◽  
2021 ◽  
Author(s):  
Mithun K P ◽  
Srabani Kar ◽  
Abinash Kumar ◽  
Victor Suvisesha Muthu Dharmaraj ◽  
Ravishankar Narayanan ◽  
...  
Keyword(s):  
Surface Plasmons ◽  
Bismuth Telluride ◽  
Topological Insulators ◽  
Collective Excitation ◽  
Optical Pump ◽  
Time Resolved ◽  
Mid Infrared ◽  
Plasmonic Materials ◽  
Probe Spectroscopy

Collective excitation of Dirac plasmons in graphene and topological insulators have opened new possibilities of tunable plasmonic materials ranging from THz to mid-infrared regions. Using time resolved Optical Pump -...

Design of the photo-ionization detector of total hydrocarbon

2013 ◽  
Author(s):  
Xinping Dong ◽  
Peng Zhang ◽  
Zhenqi Zhao ◽  
Hui Wang ◽  
Shouchen Chai
Keyword(s):  
Ionization Detector ◽  
Total Hydrocarbon ◽  
Photo Ionization

Photocarriers dynamics in silicon wafer studied with optical-pump terahertz-probe spectroscopy

2012 ◽  
Vol 285 (20) ◽  
pp. 4102-4106 ◽  
Author(s):  
Gaofang Li ◽  
Dong Li ◽  
Zuanming Jin ◽  
Guohong Ma
Keyword(s):  
Silicon Wafer ◽  
Optical Pump ◽  
Probe Spectroscopy
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