Emission spectrum of a harmonically trapped Λ-type three-level atom

Guo, Hong; Pei, Tang

doi:10.1088/1674-1056/22/5/054204

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…[7,15,16] The emission spectrum is a conventional and convenient spectroscopy technology capable of offering valuable information about studied atoms or molecules. [15,[17][18][19][20][21][22][23] Electronically excited CH (A 2 ∆ ) produced by the multi-photon dissociation has been investigated. [4,[24][25][26] Lichtin et al observed electronically excited CH through the photodissociation of CHBr 3 at 266 nm and proposed the mechanism of a three-photon process.…”

Section: Introductionmentioning

confidence: 99%

Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm

Li¹,

Liang²,

Chen³

et al. 2014

Chinese Phys. B

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In order to realize electrostatic Stark deceleration of CH radicals and study cold chemistry, the fifth harmonic of a YAG laser is used to prepare CH (A 2 ∆ ) molecules through using the multi-photon dissociation of (CH 3 ) 2 CO , CH 3 NO 2 , CH 2 Br 2 , and CHBr 3 at ∼ 213 nm. The CH product intensity is measured by using the emission spectrum of CH (A 2 ∆ → X 2 Π ). The dependence of fluorescence intensity on laser power is studied, and the probable dissociation channels are analyzed. The relationship between the fluorescence intensity and some parameters, such as the temperature of the beam source, stagnation pressure, and the time delay between the opening of pulse valve and the photolysis laser, are also studied. The influence of three different carrier gases on CH signal intensity is investigated. The vibrational and rotational temperatures of the CH (A 2 ∆ ) product are obtained by comparing experimental data with the simulated ones from the LIFBASE program.

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Section: Introductionmentioning

confidence: 99%

Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm

Li¹,

Liang²,

Chen³

et al. 2014

Chinese Phys. B

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Modeling and experimental study of the mechanism of electrification from aero-engine jet

Li¹,

Liu²,

Hui-Zhi³

et al. 2013

Acta Phys. Sin.

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To investigate the mechanism of electrification from aero-engine jet and the electrification effect on the overall charging characteristics of vehicle, a simulation model of concentration of charged particles in aero-engine is build based on the equations of fluid motion. And concentration changes of various particles are simulated. To verify the simulation result, a special electrostatic induction sensor for detecting the electrification of engine jet is designed, according to the principle of the Faraday cup, to measure the dynamic potential when the turbofan engine starts, operates steadily, accelerates, decelerates and stops. The simulation and experimental results show that the aircraft is negatively charged by the electrification from aero-engine jet and the mechanism of electrification from aero-engine jet is described specifically. The research may provide a guidance to the further study on analyzing the overall charging characteristics of vehicle during the flight.

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Dynamic generation and manipulaition of electromagnetically induced 2D phtonic band-gaps

Zhang¹,

Liu²,

Ming³

et al. 2014

Acta Phys. Sin.

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We study the steady optical responses of a four-level Tripod cold 87Rb atomic system, which is driven by two mutually perpendicular strong standing-wave laser fields. It is found that satisfying the condition of a proper detuning between two strong fields, one nearly perfect structure of double photonic band-gap, where reflectivity can reach 95%, can be generated along each direction, respectively. Shifting a strong field (two strong fields) to a travelling-wave field (two travelling-wave fields), we can achieve a reflectivity platform and a transmissivity window (two transmissivity windows). Our new findings are beneficial to a novel all-optical switching and routing, which may have applications in complex all-optical information networks.

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Emission spectrum of a harmonically trapped Λ-type three-level atom

Cited by 3 publications

References 25 publications

Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm

Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm

Modeling and experimental study of the mechanism of electrification from aero-engine jet

Dynamic generation and manipulaition of electromagnetically induced 2D phtonic band-gaps

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Emission spectrum of a harmonically trapped Λ-type three-level atom

Cited by 3 publications

References 25 publications

Production of CH (A2Δ) by multi-photon dissociation of (CH3)2CO, CH3NO2, CH2Br2, and CHBr3at 213 nm

Production of CH (A2Δ) by multi-photon dissociation of (CH3)2CO, CH3NO2, CH2Br2, and CHBr3at 213 nm

Modeling and experimental study of the mechanism of electrification from aero-engine jet

Dynamic generation and manipulaition of electromagnetically induced 2D phtonic band-gaps

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Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm

Production of CH (A²Δ) by multi-photon dissociation of (CH₃)₂CO, CH₃NO₂, CH₂Br₂, and CHBr₃at 213 nm