Change Log: Alkali D Line Data

21 November 2019

• New version: All (2.2.1).
• Corrected refractive-index bug introduced in previous version. Thanks again to Elwin Dijck.

20 November 2019

• New version: All (2.2).
• Corrected uncertainty calculations for matrix elements, saturation intensities, and cross section. Also revised parameters for refractive index of air, and associated uncertainty calculation. Thanks to Elwin Dijck for finding these errors.

13 January 2015

• New version: Rb 87 (2.1.5).
• Added D1 hyperfine-splitting measurement in Ref. [30]. Thanks to Stephan Dürr for sending me this measurement.

20 September 2013

• New version: Rb 85 (2.1.5).
• Fixed missing level in Fig. 6. Thanks to Ara Tonoyan for pointing this out.

19 September 2012

• New version: Rb 85 (2.1.5).
• Fixed missing number of electrons. Thanks to Andrew Jayich for pointing this out.

23 December 2010

• New versions: all (2.1.4).
• Changed Eq. (25) from textbook expression to correct one. Thanks to Alexey Gorshkov for pointing this out.

26 August 2009

• New version: Na (2.1.3).
• Corrected typo in value of ground-state hyperfine constant (it was only off by 3 orders of magnitude). Thanks to Ariel Sommer for pointing this out.

12 August 2009

• New versions: Cs (2.1.2), Na (2.1.2), Rb 87 (2.1.2), Rb 85 (2.1.2).
• (all versions) Factor of hbar corrected in Eq. (22). Thanks to Bruce Klappauf for pointing this out.
• (Rubidium 85) Fixed creation date.

30 April 2009

• New versions: Cs (2.1.1), Na (2.1.1), Rb 87 (2.1.1), Rb 85 (0.2.1).
• (all versions) Time dependence corrected in Eq. (64). Thanks to Brad Foreman for pointing this out.

1 September 2008

• New versions: Cs (2.1), Na (2.1), Rb 87 (2.1), Rb 85 (0.2).
• (all versions) Color error corrected in the Stark-shift plot.
• (Rubidium 85) Minor formatting error corrected in Table 13 (thanks to James Bateman for pointing this out).

2 May 2008

• New versions: Cs (2.0.1), Na (2.0.1), Rb 87 (2.0.1), Rb 85 (0.1.1).
• (all versions) Minor type corrected in matrix-element table. Thanks to Andreas Guenther for pointing this out.

30 April 2008

• New versions: Cs (2.0), Na (2.0), Rb 87 (2.0), Rb 85 (0.1, new document!).
• (all versions) Changes under the hood: all data in the document are now automatically generated and inserted into the document by various scripts, hopefully reducing transcription errors by the author.
• (Cs data) References to numerical hyperfine constant values in the text now include factors of h for consistency of units. Thanks to Marlon Nakat for comments leading to this correction.
• (all versions) Fundamental constants updated to 2006 CODATA recommended values. Thanks to Greg Smith for bringing this to my attention.
• (all versions) Updated conversion factor for polarizability in text.
• (all versions) Revised Edlen formula and indices of refraction for computed air wavelengths (thanks to Windell Oskay for appropriate references).
• (all versions) Improved formulae for weighted averages implemented that better account for inconsistencies of measurements. Some uncertainties listed have increased as a result.
• (Na version) Changed ground-state polarizability to SI value listed in Ref. [40] (previously listed value was converted from the cgs value in the same reference). Thanks to Erik Streed for pointing this out.
• (Na version) Slight change to D1 vacuum wavelength value (about 2 ppm) and associated derived values. Thanks to Horst Knoeckel for pointing out that I had transcribed the wrong value from Ref. [6].
• (Na version) Transcription error fixed for effective cross section for isotropic light (in the exponent) in Table 7. Thanks to Michael Johanning for pointing this out.
• (all versions) Fixed Eq. (61): the dipole matrix element on the left-hand side should have been squared. Thanks to Paul Hillman for pointing this out.
• (all versions) Minor change (less space) to typesetting style in punctuation in equations.
• (Rb versions) Added isotope shifts.
• (all versions) Many new measurements added, and I hope not as many new errors.
• (all versions) All hyperfine diagrams have level intervals visually shown in correct proportion (within each manifold, anyway).

14 October 2003

• New versions: Cs (1.6), Na (1.6), Rb 87 (1.6).
• (Rb 87 data) Fixed D2 line transition frequency error. Thanks to Mark Saffman for pointing this out.
• (Rb 87 data) Fixed energy level notation in Table 6 (electric/magnetic field properties). Thanks to Blair Blakie for pointing this out.
• (All versions) Fixed dipole-moment relation in discussion of optical pumping from linearly polarized light (currently Section 4.3.2), also Eq. (63), and the numerical value of the saturation intensity in this same section. Thanks to Markus Kottke for this correction.
• (All versions) Fixed Eq. (54) defining the magnetic-sublevel Rabi frequencies W(m_e, m_g), and deleted superfluous minus signs in the following discussion of W_q. Thanks to Markus Kottke for comments leading to this correction.
• (All versions) Added center transition energies in eV.
• (All versions) Added note about Clebsch-Gordan coefficient phase convention and reference to formulae. Thanks to Björn Brezger for this suggestion.