1. ABOUT THE DATASET
--------------------

Title: Dataset associated with: '2D Time-Domain Spectroscopy for Determination of Energy and Momentum Relaxation Rates of Hydrogen-Like Donor States in Germanium'

Creator(s): Thomas Gill [1], Joshua Freeman [1], Sergey Pavlov [2]

Organisation(s): 1. University of Leeds 2. German Aerospace Center (DLR)

Rights-holder(s): Copyright 2024 University of Leeds

Publication Year: 2024

Description: Dataset from figures in paper and supplementary information '2D Time-Domain Spectroscopy for Determination of Energy and Momentum Relaxation Rates of Hydrogen-Like Donor States in Germanium'.

Cite as: Gill, Thomas; Freeman, Joshua; and Pavlov, Sergey (2024) Dataset for '2D Time-Domain Spectroscopy for Determination of Energy and Momentum Relaxation Rates of Hydrogen-Like Donor States in Germanium'. University of Leeds. https://doi.org/10.5518/1486.


Related publication: Gill, Thomas; Pavlov, Sergey; Kidd, Connor; Dean, Paul; Burnett, Andrew; Dunn, Aniela; Li, Lianhe; Absrosimov, Nikolay; Huebers, Heinz-Wilhelm; Linfield, Edmund; Davies, Giles; Freeman, Joshua; '2D Time-Domain Spectroscopy for Determination of Energy and Momentum Relaxation Rates of Hydrogen-Like Donor States in Germanium', ACS Photonics, 2024. Accepted.

Contact: t.b.gill@leeds.ac.uk, j.r.freeman@leeds.ac.uk


2. TERMS OF USE
---------------

Copyright 2024 University of Leeds.

This dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/.


3. PROJECT AND FUNDING INFORMATION
----------------------------------

Title: HyperTerahertz
Dates: 01/06/2017 - 31/12/2022
Funding organisation: UKRI
Grant no.: EP/P021859/1

Title: NAME
Dates: 01/07/2021 - 30/06/2026
Funding organisation: UKRI
Grant no.: EP/V001914/1

Title: Quantitative analytical spectroscopy of ultra-high purity germanium crystals 
Dates: 01/01/2022 - 
Funding organisation: DFG
Grant no.: 509105207


4. CONTENTS
-----------
Files are comma delimited '*.dat' files containing data from figures in the paper and supplementary information.

Paper
	Figure 2b.dat		- Pump Pulse Spectra
	Figure 3a.dat		- Signal E_{AB}
	Figure 3b.dat		- Signal E_{NL}
	Figure 3c-e.dat		- Signals E_A, E_B, E_{AB} and E_{NL} at tau = 0.5 ps
	Figure 4.dat		- 2D FFT of E_{NL} at pump field of 23 kV/cm
	Figure 5a.dat		- Spectrogram of E_{NL} as a function of t delay at 23 kV/cm
	Figure 5b+d.dat		- Slices of spectrograms 5(a) and 5(c) at 1.99, 2.28 and 3.01 THz 
	Figure 5c.dat		- Spectrogram of E_{NL} as a function of t delay at 35 kV/cm
	Figure 6a-d.dat		- Slice of E_{NL} at t = 2.4 ps at 23 and 35 kV/cm, resulting fits and amplitude of frequency components 1.99, 2.28 and 3.01 THz 
	Figure 7a.dat		- 2D FFT of E_{NL} produced by 4-Level Maxwell Bloch simulation
	Figure 7b.dat		- Pump Pulse Spectra used in 4-level Maxwell Block simulation

Supplementary Info
	Figure S1.dat		- Normalised frequency response of 0.44 mm Ge:As sample, measured using 1D-TDS
	Figure S2a.dat		- 2D FFT of E_{NL} at pump field of 12 kV/cm
	Figure S2b.dat		- 2D FFT of E_{NL} at pump field of 23 kV/cm
	Figure S2c.dat		- 2D FFT of E_{NL} at pump field of 35 kV/cm
	Figure S2d.dat		- 2D FFT of E_{NL} at pump field of 46 kV/cm
	Figure S3a.dat		- E_{AB} 2D time domain response of the 4-level Maxwell-Bloch simulation
	Figure S3b.dat		- E_{NL} 2D time domain response of the 4-level Maxwell-Bloch simulation
	Figure S3c-e.dat	- Signals E_A, E_B, E_{AB} and E_{NL} at tau = 0.5 ps of the 4-level Maxwell-Bloch simulation
	Figure S4a-b.dat	-  Slice of E_{NL} at t = 2.4 ps of the 4-Level Maxwell Bloch simulation, resulting fit and amplitude of frequency components 2, 2.3 and 3 THz 
	Figure S4c-d.dat	- Lifetime and maxium field value of each frequency component as a function of t delay obtained from analysis of the 4-Level Maxwell Bloch simulation
	Figure S5a-b.dat	-  Slice of E_{NL} at t = 2.4 ps of the 2-Level Maxwell Bloch simulation, resulting fit and amplitude of the 2.3 THz frequency component 
	Figure S5c.dat		- Lifetime of the 2.3 THz frequency component as a function of t delay obtained from analysis of the 2-Level Maxwell Bloch simulation
	Figure S5d.dat		- Maximum field value obtained from the 2.3 THz frequency component as a function of t delay and resulting exponential decay obtained from analysis of the 2-Level Maxwell Bloch simulation



5. METHODS
----------

- Raw data acquired from custom 2D time domain spectroscopy system and software
- Raw data processed using custom 2D time domain spectrscopy analysis software written in MATLAB
- Data from simulations acquired using custom software written in MATLAB