HPC Tier Module
HEL Beam Propagation Simulator
Browser-native High Energy Laser beam propagation: a Gaussian beam (wavelength, waist, power) launched over a horizontal or slant atmospheric path, with the vacuum diffraction spread w(z), Fried coherence length r0 (constant-Cn2 horizontal OR the Hufnagel-Valley slant integral), turbulence-broadened long-term spot, Strehl ratio, power-in-the-bucket at a target aperture, peak irradiance and a thermal-blooming distortion number out - the target-plane irradiance drawn as a 2D heatmap.
See it run - a worked example, 100% in this browser tab
What it is
Browser-native High Energy Laser beam propagation: a Gaussian beam (wavelength, waist, power) launched over a horizontal or slant atmospheric path, with the vacuum diffraction spread w(z), Fried coherence length r0 (constant-Cn2 horizontal OR the Hufnagel-Valley slant integral), turbulence-broadened long-term spot, Strehl ratio, power-in-the-bucket at a target aperture, peak irradiance and a thermal-blooming distortion number out - the target-plane irradiance drawn as a 2D heatmap. The vacuum Gaussian optics is exact (GeoNum-certified); the turbulence and blooming terms are published models, flagged as model accuracy. Deterministic, client-side, sub-100 ms, wall-time on every run. Standard published beam-propagation optics.
Honest scope
Deterministic and citation-backed: every figure is exact arithmetic or a cited rule. Any year- or jurisdiction-indexed value is a confirmable input, never an eternal hardcode. This is a computation tool, not professional (legal, tax, medical, or financial) advice - confirm against the controlling authority for your context.
Authorities cited
- L. C. Andrews and R. L. Phillips, Laser Beam Propagation through Random Media, 2nd ed., SPIE Press 2005. Gaussian-beam wave optics, Fried parameter, long-term spot, Strehl. https://doi.org/10.1117/3.626196
- D. L. Fried (1966). Optical resolution through a randomly inhomogeneous medium for very long and very short exposures. J. Opt. Soc. Am. 56(10), 1372-1379. The coherence length r0. https://doi.org/10.1364/JOSA.56.001372
- Hufnagel-Valley (HV 5/7) Cn2(h) profile: R. E. Hufnagel, "Variations of atmospheric turbulence" (OSA Topical Meeting 1974) and G. C. Valley, Appl. Opt. 19, 574 (1980). https://doi.org/10.1364/AO.19.000574
- A. Marechal / R. J. Noll (1976), Zernike polynomials and atmospheric turbulence, J. Opt. Soc. Am. 66, 207; extended-Marechal and Yura/Parenti Strehl approximation SR = (1 + (D/r0)^(5/3))^(-6/5). https://doi.org/10.1364/JOSA.66.000207
- F. G. Gebhardt (1976). High power laser propagation. Appl. Opt. 15(6), 1479-1493. Thermal-blooming distortion number (weak-blooming scaling). https://doi.org/10.1364/AO.15.001479
Run it on your own data
Open it inside GDBS to save runs to Sandbox, attach results to a Worklog case, or share through a Gate client portal - all in the browser, nothing uploaded to anyone’s cloud.