Reduction of the second order Doppler broadening in two-photon atomic beam spectroscopy: a proposal

1992 ◽  
Vol 89 (2-4) ◽  
pp. 199-204 ◽  
Author(s):  
P. Juncar ◽  
M. Himbert
Keyword(s):  
Atomic Beam ◽  
Second Order ◽  
Doppler Broadening ◽  
Two Photon

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Determination of absolute two-photon excitation cross sections by in situ second-order autocorrelation

1995 ◽  
Vol 20 (23) ◽  
pp. 2372 ◽  
Author(s):  
Chris Xu ◽  
Winfried Denk ◽  
Jeffrey Guild ◽  
Watt W. Webb
Keyword(s):  
Cross Sections ◽  
Second Order ◽  
Two Photon ◽  
Photon Excitation ◽  
Excitation Cross Sections ◽  
Two Photon Excitation

scholarly journals Generation of Pure State Photon Triplets in the C-Band

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 775 ◽  
Author(s):  
Xi-Rong Su ◽  
Yi-Wen Huang ◽  
Tong Xiang ◽  
Yuan-Hua Li ◽  
Xian-Feng Chen
Keyword(s):  
Pure State ◽  
Schmidt Number ◽  
Second Order ◽  
Conversion Process ◽  
Gaussian Filter ◽  
Periodically Poled ◽  
Two Photon ◽  
Parametric Down Conversion ◽  
Photon States ◽  
Down Conversion

In this work, the cascaded second-order spontaneous parametric down-conversion (SPDC) is considered to produce pure state photon triplets in periodically poled lithium niobite (PPLN) doped with 5% MgO. A set of parameters are optimized through calculating the Schmidt number of two-photon states generated by each down-conversion process with different pump durations and crystal lengths. We use a Gaussian filter in part and obtain three photons with 100% purity in spectrum. We provide a feasible and unprecedented scheme to manipulate the spectrum purity of photon triplets in the communication band (C-band).

The effect of Doppler broadening on dispersive and absorptive properties in atomic systems with two-photon interference

2011 ◽  
Vol 284 (24) ◽  
pp. 5697-5701 ◽  
Author(s):  
Lida Zhang ◽  
Fengxue Zhou ◽  
Yueping Niu ◽  
Jingtao Zhang ◽  
Shangqing Gong
Keyword(s):  
Doppler Broadening ◽  
Atomic Systems ◽  
Two Photon

Generation of frequency-bin entangled two-photon state via cascaded second-order nonlinear processes

2019 ◽  
Author(s):  
Zichang Zhang ◽  
Chenzhi Yuan ◽  
Ruiming Zhang ◽  
Hao Yu ◽  
Guangwei Deng ◽  
...  
Keyword(s):  
Second Order ◽  
Nonlinear Processes ◽  
Photon State ◽  
Two Photon

scholarly journals Second-order autocorrelation of XUV FEL pulses via time resolved two-photon single ionization of He

2011 ◽  
Vol 19 (22) ◽  
pp. 21698 ◽  
Author(s):  
R. Moshammer ◽  
Th. Pfeifer ◽  
A. Rudenko ◽  
Y. H. Jiang ◽  
L. Foucar ◽  
...  
Keyword(s):  
Second Order ◽  
Time Resolved ◽  
Single Ionization ◽  
Two Photon

Two-photon spectroscopy in a fast atomic beam

1976 ◽  
Vol 16 (2) ◽  
pp. 292-294 ◽  
Author(s):  
Rainer Salomaa ◽  
Stig Stenholm
Keyword(s):  
Atomic Beam ◽  
Two Photon

Laser-Power Dependency of Resonant Two-Photon Ionization in Flames

1989 ◽  
Vol 43 (4) ◽  
pp. 633-637 ◽  
Author(s):  
M. D. Seltzer ◽  
R. B. Green
Keyword(s):  
Laser Power ◽  
Diagnostic Value ◽  
Second Order ◽  
Excitation Scheme ◽  
Order Dependence ◽  
Two Photon ◽  
Ionization Mechanisms ◽  
Ionization Signal ◽  
Photon Ionization ◽  
Collisional Ionization

Resonant two-photon ionization competes with laser-enhanced collisional ionization (LEI) in flames to ionize analyte atoms. The predominance of either mechanism for a given element depends on the excitation scheme as well as the level of irradiance. Optical saturation of the resonant transition through which the two-photon mechanism proceeds precludes observation of a second-order dependence of ionization signal on laser power. The laser power dependency of resonant two-photon ionization for a series of elements is examined, and results of diagnostic value regarding the probable ionization mechanisms are obtained.

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