In this Letter, a modification of the well-known focused-laser differential interferometer (FLDI)
is demonstrated, with the primary focus being increasing the number of probed locations …

In this work, an enhanced version of the focused laser differential interferometer (FLDI) is
used to measure second-mode instabilities in the boundary layer on a flared cone in Mach 6 …

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 …

View Video Presentation: https://doi. org/10.2514/6.2021-0599. vid In this work, the
capabilities of the traditional focused-laser differential interferometry (FLDI) technique are …

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/10.2514/6.2022-0734. vid In this paper, a Q-FLDI
system was constructed to correlate disturbances inside and outside of the boundary layer …

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 …

View Video Presentation: https://doi. org/10.2514/6.2023-0288. vid FLDI is used to
characterize an unstable boundary layer on a 5-degree cone. Results from two experiments …

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 …

An instrument is demonstrated that is capable of simultaneous and independent flow density
fluctuation measurements over the same line-of-sight by combining two optical techniques …