Study on Coherent Dynamics of Alkali Metal Atomic Wave Packets

2013 ◽  
Vol 538 ◽  
pp. 285-288
Author(s):  
Chang Jun Zhu ◽  
Jun Fang He
Keyword(s):  
Fourier Transform ◽  
Alkali Metal ◽  
Wave Packets ◽  
Energy Levels ◽  
Four Wave Mixing ◽  
Quantum Beats ◽  
Wave Mixing ◽  
Mixing Processes ◽  
Information Encoding ◽  
Atomic Wave

A theoretical model consisting of 5 energy levels, with the three upper states coherently excited, was proposed to analyze the coherent characteristics of atomic wave packets using perturbative theory. Pump-probe technique was implemented to detect coupled difference frequency four-wave mixing processes for studying the coherent characteristics of Rb atomic wave packets. Quantum beats were extracted the time domain signal by Fourier transform. Moreover, the variation of quantum beats was gained by time-dependent Fourier transform. The results show that the coherent characteristics of alkali metal atomic wave packets are closely related to quantum beats embedded in the time delayed four-wave mixing signal. Theoretical results are consistent with experimental observations, possessing potential applications in multi-channel information encoding and decoding.

Study of Multiple Quantum Beats in Atomic Wavepackets

2013 ◽  
Vol 325-326 ◽  
pp. 119-122
Author(s):  
Chang Jun Zhu ◽  
Bing Xue ◽  
Xue Jun Zhai ◽  
Jun Fang He
Keyword(s):  
Density Matrix ◽  
Four Wave Mixing ◽  
Quantum Beat ◽  
System Response ◽  
Quantum Beats ◽  
Multiple Quantum ◽  
Wave Mixing ◽  
Third Order ◽  
Mixing Processes ◽  
The Third

A theoretical model consisting of 5 energy levels in coupled four-wave mixing processes was proposed to analyze the coherent characteristics of atomic wavepackets using perturbative theory. The equations of motions of the density matrix were derived and the third-order density matrix elements were presented. Under the condition that the duration of laser pulses is sufficiently short, the system response was treated as impulse response. Moreover, in the lowest order perturbation theory, the third-order nonlinear polarization was obtained using rotating-wave approximation. The results show that multiple quantum beats are embedded in the coupled four-wave mixing signals, and coherent dynamics of wavepackets can be retrieved from the quantum beat dynamics.

scholarly journals Four-wave mixing of solitons with radiation and quasi-nondispersive wave packets at the short-wavelength edge of a supercontinuum

2006 ◽  
Vol 14 (21) ◽  
pp. 9854 ◽  
Author(s):  
A.V. Gorbach ◽  
D.V. Skryabin ◽  
J.M. Stone ◽  
J.C. Knight
Keyword(s):  
Short Wavelength ◽  
Wave Packets ◽  
Four Wave Mixing ◽  
Wave Mixing

Theory of rotational linestrengths for resonant four-wave-mixing processes in gaseous media with application to CARS

1993 ◽  
Vol 169 (1) ◽  
pp. 113-128 ◽  
Author(s):  
Ilse Aben ◽  
Wim Ubachs ◽  
Gert van der Zwan ◽  
Wim Hogervorst
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Processes ◽  
Gaseous Media

scholarly journals Induced Photon Correlations Through the Overlap of Two Four‐Wave Mixing Processes in Integrated Cavities

2020 ◽  
Vol 14 (9) ◽  
pp. 2000128 ◽  
Author(s):  
Yanbing Zhang ◽  
Michael Kues ◽  
Piotr Roztocki ◽  
Christian Reimer ◽  
Bennet Fischer ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Processes

Influence of stochasticity on multiple four-wave-mixing processes in an optical fiber

2002 ◽  
Vol 66 (6) ◽  
Author(s):  
Bhaskar Khubchandani ◽  
Parvez N. Guzdar ◽  
Rajarshi Roy
Keyword(s):  
Optical Fiber ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Processes

scholarly journals Tailored Raman-resonant four-wave-mixing processes

2018 ◽  
Vol 26 (2) ◽  
pp. 1452 ◽  
Author(s):  
C. Ohae ◽  
J. Zheng ◽  
K. Ito ◽  
M. Suzuki ◽  
K. Minoshima ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Processes
Sign in / Sign up

Export Citation Format

Share Document