Data from:

"Observation of interference effects via four photon excitation of highly excited Rydberg states in thermal cesium vapor"

Authors: Jorge M. Kondo and Nikola Sibalic and Alex Guttridge and Christopher G. Wade and Natalia R. De Melo and Charles S. Adams and Kevin Weatherill


This file provides information about the data presented in the article titled "Observation of interference effects via four photon excitation of highly excited Rydberg states in thermal cesium vapor".
All data provided here are in the same units as used in the corresponding article, unless otherwise explicitly stated. 

A pre-printed version of this paper can be found on the arxiv.org:

http://arxiv.org/abs/1510.01729

The data was generated by Jorge M. Kondo, the figures were generated using matplotlib in python.
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Description of the figure using scan_hyperfine_states8P.csv:

Figure 2b: (Solid green curve)Experimental data showing the hyperfine splitting of intermediate state {|3'>,|3>} = |8P1/2,f'''={3,4}> by three photon interference, zero detuning correspond to transition |2>->|3'>.

Description of the data embedded in scan_hyperfine_states8P.csv:

First column = Experimental detuning of the second dressing laser (delta1394/2pi) recorded by a digital wavemeter in MHz .
Second column = Photodiode raw signal (intensity of the probe beam) in Volts.
Third column = Photo-diode calibrated transmission signal, 1.0 (Full beam transmission) and 0.0 (Full beam absorption).
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Description of the figure using scan_rydberglaser_52D.csv:

Figure 2c*: (Solid red curve) Measured probe beam transmission when coupling to Rydberg state while scanning the Rydberg beam, the second dressing beam is detuned delta1394 = 30+-3 MHz from transition |2>->|3'>.

*grey line marks the limit between absorption and transparency in the data.

Description of the data embedded in scan_rydberglaser_52D.csv:

First column = Frequency scanning of the Coupling Rydberg laser in 1770 nm wavelength (Delta1770/2pi) in MHz.
Second column = Probe intensity after demodulation of Lock-in-Amplifier in Volts.
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Description of the figure using numerical_solution_model.csv:

Figure 3a: (Color map obtained from model)Normalized transmission from theoretical model ddepicting dependency to detunings delta1394 and delta1770 that couples states 7S1/2 -> 8P1/2 -> 52D3/2.

Description of the data embedded in numerical_solution_model.csv:

First column = Detuning parameter for the second dressing laser (delta1394/2pi) in Ghz used on the numerical simulation.
First row =  Detuning parameter for the coupling Rydberg laser (delta1770/2pi) in Ghz used on the numerical simulation.
[Row,column] = Optical Bloch Equation numeric solution for the transmission of the probe beam. With exception of the first column and row, each element of the matrix data has
dependency with delta1394 (first column) and delta1770 (first row). The data gives the absolute change in transmission, subtracted the hyperfine splitting of 8P1/2.
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Description of the figure using experimentaldata_fourphoton.csv:

Figure 3b*: (Color map obtained from experiment)Comparison between numerical simulation and interpolated experimental data. Color lines mapped from numerical simulation is deployed on top of the experimental map to guide the eye.

*Countour lines to guide the eyes were extracted from numerical_solution_model.csv.

Description of the data embedded in experimentaldata_fourphoton.csv:

First column = Experimental detuning of the Rydberg laser beam delta1770/2pi in GHz.
Second column = Experimental detuning of the second dressing beam delta1394/2pi in GHz.
Third column = Demodulated Lock-in-Amplified signal from transmission of the probe beam in Volts.
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