Focused laser differential interferometry (FLDI), first introduced in the 1970s, has developed
into a powerful tool for the analysis of turbulent dynamics and fluctuations in fluid flows …

In this work, a model of focused laser differential interferometry (FLDI) is derived by
incorporating the local intensity of each beam in an FLDI beam pair. We rederive some …

View Video Presentation: https://doi. org/10.2514/6.2022-1796. vid The continuous
development and advancement of multi-point line focused laser differential interferometry …

A colinear focused laser differential interferometer (FLDI) and self-aligned focusing schlieren
(SAFS) system has been assembled and tested in the laboratory, using a turbulent jet of …

View Video Presentation: https://doi. org/10.2514/6.2023-0270. vid Focused laser differential
interferometry (FLDI) was used to quantify the index of refraction amplification in the shock …

View Video Presentation: https://doi. org/10.2514/6.2023-0223. vid Two-point focused laser
differential interferometry (2pFLDI) is shown to be a viable technique for making non …

A review is presented of recent research efforts that were conducted at the NASA Langley
Research Center in the Langley Aerothermodynamics Laboratory. An overview of the test …

A spatial light modulator (SLM) is incorporated into a focused laser differential interferometer
(FLDI) to generate a nonlinear array of beams, and this setup is used to measure the power …

A modified version of focused laser differential interferometry (FLDI) is demonstrated with
adjacent beam pairs distributed along the optical axis. This feature is accomplished using …

We first propose and demonstrate a novel approach for achieving a focused laser differential
interferometer (FLDI) system with tunable spatial resolution. The spatial resolution of the …