Spectral pattern of a free-running optical parametric oscillator (OPO) on a virtually-imaged phased array (VIPA)

Rayleigh scattering (green) diagnostic applied to a high temperature, low pressure discharge plasma (red).

Low pressure discharge in helium-xenon mixture.

Free-running oscillation of an optical parametric oscillator (OPO)

Fringe pattern of a virtually-imaged phased array (VIPA).

Low pressure DC discharge in air.

Mie scattering from particles perturbed by a laser-generated plasma (diffuse glow). Effective particle illumination time is 10 nanosecond.

Sphere-to-sphere low pressure discharge in air.

Concept for self-guided beamed propulsion, using laser and particle beams.

Hyperspectral spontaneous Raman scattering diagnostic of a nanosecond pulsed discharge plasma.