Minimum detectable field dependence with...
URL: https://data.nist.gov/od/ds/mds2-3159/Fig2_NormMinDetectableSigVSIF.csv
Probe frequency comb spans the D2 F=4-F'=5 transition in cesium, counter-propagating coupling laser is resonant with the 6P3/2-56D5/2 transition, and two RF fields impinge on the atoms. A strong RF LO is resonant with the 56D5/2-57P3/2 transition and a weak RF signal is detuning from the LO by an intermediate frequency from kilohertz to megahertz. Sidebands are imparted to each of the probe comb teeth following propagation through the cesium atoms in vapor. These sidebands occur at the intermediate frequency between the RF fields. The positive and negative sidebands are extracted and Gaussian fits across each comb spectrum applied to determine the amplitude of each sideband (nominally equal to the sideband value at the comb tooth located exactly at the center of the EIT). The strength of the RF field is ramped down and the field strength at the point where the sideband amplitudes equal the noise floor in the measurement is recorded. Similarly, the frequency comb on the probe laser is turned off, leaving a single frequency laser that is resonant with the D2 F=4-F'=5 transition and the minimum detectable RF signal field is determined based on the signal at the intermediate frequency using a spectrum analyzer. The minimum detectable field values for each data set - single frequency, positive sideband, and negative sideband - as a function of the set of intermediate frequencies measured are then fitted to an exponential function. These data report the measured minimum detectable field normalized by the fitted value at low intermediate frequency for each of the three datasets including normalized propagated 95 % confidence bounds in the minimum detectable field. Also included in these data is the normalized exponential fits to the measured minimum detectable field vs intermediate frequency with respective 95 % confidence bounds. Lastly, the 3 dB-point where each determined minimum detectable field strength at low intermediate frequency increases by a factor of two is given (simply a value of two in these normalized units).
About this Resource
| Last updated | unknown |
|---|---|
| Created | unknown |
| Name | Minimum detectable field dependence with intermediate frequency - Bandwidth study |
| Format | Web Resource |
| License | other-license-specified |
| Created | 2 years ago |
| Media type | text/csv |
| has views | False |
| id | 20984daa-d494-4ac8-a894-f0e33530e79f |
| metadata modified | 2 years ago |
| package id | ba4c9634-f02d-40cc-a39f-a356d4e93902 |
| position | 3 |
| state | active |
| tracking summary | {'total': 0, 'recent': 0} |