Optimized Transport Setup for High Repetition Rate Pulse-Separated Analysis in Laser Ablation−Inductively Coupled Plasma Mass Spectrometry

2009 ◽  
Vol 81 (11) ◽  
pp. 4241-4248 ◽  
Author(s):  
Helmut Lindner ◽  
David Autrique ◽  
Carmen C. Garcia ◽  
Kay Niemax ◽  
Annemie Bogaerts
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Repetition Rate ◽  
Inductively Coupled Plasma ◽  
High Repetition Rate ◽  
Inductively Coupled ◽  
High Repetition ◽  
Plasma Mass Spectrometry

scholarly journals Nonlinear Absorptions of CdSeTe Quantum Dots under Ultrafast Laser Radiation

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Zhijun Chai ◽  
Yachen Gao ◽  
Degui Kong ◽  
Wenzhi Wu
Keyword(s):  
Quantum Dots ◽  
Repetition Rate ◽  
Inductively Coupled Plasma ◽  
High Repetition Rate ◽  
Photon Absorption ◽  
Heat Accumulation ◽  
Inductively Coupled ◽  
High Repetition ◽  
Plasma Mass Spectrometry ◽  
Nonlinear Absorptions

The oil-soluble alloyed CdSeTe quantum dots (QDs) are prepared by the electrostatic method. The basic properties of synthesized CdSeTe QDs are characterized by UV-Vis absorption spectroscopy, photoluminescence spectroscopy, inductively coupled plasma mass spectrometry, and transmission electron microscope. The off-resonant nonlinear optical properties of CdSeTe QDs are studied by femtosecondZ-scan at 1 kHz (low-repetition rate) and 84 MHz (high-repetition rate). Nonlinear absorption coefficients are calculated under different femtosecond laser excitations. Due to the long luminescent lifetime of CdSeTe QDs, under the conditions of high-repetition rate, for open-aperture curve, heat accumulation and bleaching of ground state are responsible for the decrease of two-photon absorption (TPA) coefficient.

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