Raw data for the lifetime measurement of the 5s5p 1P1 state in strontium

This description contains instructions for the analysis of raw data presented in the following work: Lifetime measurement of the 5s5p 1P1 state in strontium Ivana Puljić, Ana Cipriš, Damir Aumiler, Ticijana Ban, and Neven Šantić Institute of Physics, Centre for Advanced Laser Techniques, Bijenička cesta 46, 10000 Zagreb, Croatia Preprint available here: https://arxiv.org/abs/2501.07395 For further details about the experiment setup and parameters please refer to the manuscript or contact the corresponding author. This file contains instructions for the data analysis. Each data point is obtained in 3 steps: 1. measuring the background by detuning of the laser (457 nm) - collection time P_T1 2. measuring the signal with the laser on the resonance (461 nm) - collection time T 3. again measuring the background by detuning of the laser (457 nm) - collection time P_T2 Each collection time corresponds to the number of banks collected. Each bank duration is 512 seconds. For all measurements the power of the laser was measured at the entrance window of the cell. The FWHM of the laser spectrum was 1.6nm. Polarization of the beam was vertical for all measurements. Filenames are organized by dependance, signal and backgrounds, dates (DD_MM) and number of bank (jj), i.e: - if the measurement is testing the dependance, it contains a prefix of 'power_', 'mag_field_' or 'disp_..._%IA_', where %I is the current on the dispensers - independent measurements have no prefixes in the filename - for the measurement of the first background: 'back1_DD_MM_bank (jj).ascii' - for the measurement of the signal: 'signal_DD_MM_bank (jj).ascii' - for the measurement of the second background: 'back2_DD_MM_bank (jj).ascii' 8 independent measurements: - data was collected with the magnetic field compensated using 3 pairs of coils ( B = 0G ) - data was collected at the dispenser current of 8.0A, which corresponds to the measured OD of 0.0011 - data was collected on the following dates, with the following conditions: 1. 24.02.2024. PT_1 = 450, T = 141, P_T2 = 141, photon count rate = 2.1e4, P = 32 uw, filenames = 'back1_24_02_bank (ii). ascii','signal_24_02_bank (ii). ascii','back2_24_02_bank (ii). ascii' 2. 12.03.2024. PT_1 = 46, T = 106, P_T2 = 46, photon count rate = 2.1e4, P = 37 uw 3. 28.03.2024. PT_1 = 39, T = 106, P_T2 = 71, photon count rate = 2.2e4, P = 36 uw 4. 03.04.2024. PT_1 = 22, T = 106, P_T2 = 85, photon count rate = 2.2e4, P = 37 uw 5. 07.04.2024. PT_1 = 176, T = 268, P_T2 = 92, photon count rate = 2.2e4, P = 35 uw 6. 12.04.2024. PT_1 = 29, T = 106, P_T2 = 78, photon count rate = 2.2e4, P = 35 uw 7. 16.04.2024. PT_1 = 25, T = 106, P_T2 = 81, photon count rate = 2.1e4, P = 34 uw 8. 23.04.2024. PT_1 = 117, T = 162, P_T2 = 46, photon count rate = 2.3e4, P = 35 uw Measurements of the power broadening effect: - data was collected with the magnetic field compensated using 3 pairs of coils ( B = 0G ) - data was collected at the dispenser current of 8.0A, which corresponds to the measured OD of 0.0011 - data was collected on the following dates, with the following conditions: 1. 29.02.2024., PT_1 = 141, T = 197, P_T2 = 457, photon count rate = 0.4e4, P = 7 uW, filenames = 'power_back1_29_02_bank (ii). ascii','power_signal_29_02_bank (ii). ascii','power_back2_29_02_bank (ii). ascii' 2. 05.03.2024., PT_1 = 29, T = 106, P_T2 = 50, photon count rate = 4e4, P = 68 uW 3. 07.03.2024., PT_1 = 106, T = 211, P_T2 = 113, photon count rate = 0.2e4, P = 3 uW 4. 09.03.2024., PT_1 = 43, T = 155, P_T2 = 270, photon count rate = 3.6e4, P = 66 uW Measurements of the magnetic field effect: - data was collected with the photon count rate of 2e4 - data was collected at the dispenser current of 8.0A, which corresponds to the measured OD of 0.0011 - the + (-) sign represents the magnetic field in the direction (opposite to) of the propagation of the laser beam - data was collected on the following dates, with the following conditions: 1. 13.03.2024., B = + 0.5 G, PT_1 = 113, T = 169, P_T2 = 39, photon count rate = 2e4, P = 36 uw, filenames = 'mag_field_back1_13_03_bank (ii). ascii','mag_field_signal_13_03_bank (ii). ascii','mag_field_back2_13_03_bank (ii). ascii' 2. 16.03.2024., B = - 1 G, PT_1 = 43, T = 162, P_T2 = 282, photon count rate = 2e4, P = 35 uw 3. 19.03.2024., B = - 0.5 G, PT_1 = 29, T = 162, P_T2 = 106, photon count rate = 2.1e4, P = 36 uw 4. 03.05.2024., B = - 0.5 G, PT_1 = 29, T = 106, P_T2 = 78, photon count rate = 2.2e4, P = 35 uw Measurements of radiation trapping: - data was collected with the magnetic field compensated using 3 pairs of coils ( B = 0G ) - data was collected with the photon count rate of 2e4 1. 21.03.2024., I_dispenser = 9.5 A, OD = 0.02, PT_1 = 8, T = 15, P_T2 = 8, photon count rate = 2.4e4, P = 35 uw, filenames = 'disp_back1_95A_21_03_bank (ii). ascii','disp_signal_95A_21_03_bank (ii). ascii','disp_back2_95A_21_03_bank (ii). ascii' 2. 23.03.2024., I_dispenser = 7.5 A, OD = 0.0004, PT_1 = 109, T = 211,...