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 · Catalogue · Review register
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 review register for the checks and decisions.