An all-in-one solution for wavefront reconstruction
A Robust Tool for Digital Reconstructions, Simulations & Particle Field Holography
A versatile software that provides an all-in-one solution for wavefront reconstruction, wavefront simulation and particle field holography in a user-friendly graphical interface. The software accepts holograms for both, in-line and off-axes schemes with the option to locate and specify the cross-term in the latter case. Numerical focusing can be performed in virtual space using multiple functionalities for wavefront propagation.
Plume surface interaction measurements from a sonic jet impinging on a bed of lunar regolith: M. M. Mansoor, N. Rodrigues, Y. Hong, J. George, “Nonintrusive diagnosis of ejecta cloud from plume surface interactions using high-speed digital holography”, Acta Astronautica (246) 477-506 (2026).
3D particle trajectories over (a) 0.39-0.52 s, (b) 0.78-0.92 s and (c) 0.92-1.05 s after the collision of a 375 m/s projectile with a gypsum target. Horizontal, vertical and in-plane veloicties are shown in (d, e, f), respectively: M. M. Mansoor, J. D. Trolinger and J. George, “Towards three-dimensional characterization of hypervelocity impact events using ultrahigh-speed digital holography”, Int. J. Impact Eng. (172)104421 (2023).
Three-dimensional velocity-based trajectory plots obtained from (a, b, c) macroscale and (d, e, f) microscale digital holograms captured at different times after the impact of a V ~1.1 km/s projectile with a water-filled Aluminum container with a 1/8 inch sheet thickness: M. M. Mansoor and J. George, “High-speed particle field digital holography to characterize aerosol formation from high-speed impact with liquid-filled containers” Int. J. Impact Eng. (208) 105531 (2026).
| Hologram formats accepted | tiff, tif, png, bmp, jpeg , jpg |
| Hologram types | In-line & Off-axis (planar waves) |
| Inputs | Object & reference holograms (latter is optional), illumination wavelength, pixel size (length & width), system magnification, cross term location and size (off-axis holography), propagation distance |
| Background removal | Subtraction, Division, SDPM |
| Propagation methods | Angular Spectrum, Upsampling, Lowpass filtering, Fast Fourier Transform |
| Pre-propagation features | Sinc compensation, Zero padding |
| De-twinning | Two methods: Iterative or SDPM |
| Optical distortion removal | Fixed frequency distortion target (dot-pattern grid) calibration |
| Simulations | Simulate field-of-view, fringes captured, lateral resolution based on imaging sensor, setup and illumination of a spherical object |
| Particle field holography | Determine 3D location and size of particles in sequential holograms using minimum intensity and maximum Tenengrad methods |
| Measurements | Amplitude and Phase (wrapped/unwrapped), 3D particle trajectories, mean velocities, instantaneous velocities |
| Reconstruction(s) | Single or batch processing |
| Save/Load | Settings, reconstruction, simulation |
| Operating system | Windows 11 (64 bit) |
| CPU | Intel Core i3 or faster |
| GPU | NVIDIA graphics card with a compute capability of 3.5 and above |
| Memory | 2 GB or more |
| Screen size | 1328 × 510 or larger |
| Connection Port | USB 3.0 |
| License | USB dongle (2.27” × 0.75” × 0.42”) |
MetroLaser will continue to pursue state-of-the-art research and development as well as the commercialization of optical diagnostics systems to measure flow velocity, temperature, chemical composition, surface temperature inside gas turbine engines, and non destructive inspection of composites and other components.
