wahlstrand_2016
===============

J\. K\. Wahlstrand, S\. Zahedpour and H\. M\. Milchberg, "Optimizing the time resolution of supercontinuum spectral interferometry", J\. Opt\. Soc\. Am\. B 33, 1476 \(2016\)

`Source record <https://github.com/LupoLab/optmat/blob/main/src/optmat/data/sources/wahlstrand_2016.toml>`__ · :doc:`Catalogue </the-data/sources>` · :doc:`Review register </register>`

DOI: `10\.1364/josab\.33\.001476 <https://doi.org/10.1364/josab.33.001476>`__

**Source kind:** theory

**Recorded technique:** Analysis of single\-shot supercontinuum spectral interferometry \(SSSI\)\: an analytical \(stationary\-phase\) model of the spectral phase and amplitude modulation of a chirped supercontinuum probe by a weak transient phase perturbation \(Eqs\. 1\-6\), numerical simulations, and a multishot delay\-scan method for measuring the probe's spectral phase in situ, demonstrated in argon \(50 fs pump, about 60 TW/cm^2, below ionization; supercontinuum from filamentation of a 40 fs pulse in 2\.7 atm Xe\), with the setup of the group's earlier n2 measurements\.

**Materials in structured entries:** None recorded.

**Dataset quantities:** None recorded.

**Contents:** 0 datasets; 0 formulas.

Curation notes
--------------

NOTES\-ONLY RECORD\: nothing is extracted\. This is a methods paper on the time resolution of SSSI, not a calibration or measurement of the nonlinear index\. It prints no n2 of any gas, no gas density and no absolute scale\. What it contains\: \- Eqs\. \(7\)\-\(8\)\: the spectral\-resolution conditions \|beta\_2 Delta omega\| \< tau\_r/2 and \|beta\_2/tau\_r\| \< tau\_w/\(4 pi\) \(tau\_r the probe\-reference delay, tau\_w the duration of the phase transient\), and the allowed error in the probe's spectral\-phase coefficients, Delta beta\_n \< \(tau\_w/pi\)^n \(e\.g\. 10 fs^2 in beta\_2 and 32 fs^3 in beta\_3 for a 10 fs transient\) \(Section 5\)\. \- Simulations \(Figs\. 1\-2, 5\-6\) with an assumed n2 = 10^\-19 cm^2/W, 'for the Kerr co\-efficient', a peak pump intensity of 8 x 10^13 W/cm^2 and L\_eff = 0\.4 mm, 'all typical parameters in our experiments \[3\]'\: an assumed model input, not a measurement of any gas, and not stored \(it would be an assumed value of no stated gas\)\. \- The argon demonstration \(Fig\. 3\) yields the probe's dispersion coefficients \(beta\_2 = 1956 fs^2, beta\_3 = 386 fs^3, beta\_4 = 168 fs^4\), properties of that probe beam, not of argon\. The n2 values of the same group are recorded from their own papers \(wahlstrand\_2012, wahlstrand\_2012b, zahedpour\_2015 and others\)\. The library's validation reports unmapped glyphs on p\. 2 \(in the definition of the pump intensity I\(t\), not a number\) and informational figure\-grouping findings\.

**Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.

Datasets
--------

No datasets are recorded.

Formulas
--------

No formulas are recorded.

Corrections
-----------

No dataset errata are recorded in this source record.

Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the :doc:`review register </register>` for the checks and decisions.