The SuperCam Instrument Suite on the NASA Mars 2020 Rover: Body Unit and Combined System Tests.

The SuperCam instrument suite provides the Mars 2020 rover, Perseverance, with a number of versatile remote-sensing techniques that can be used at long distance as well as within the robotic-arm workspace. These include laser-induced breakdown spectroscopy (LIBS), remote time-resolved Raman and luminescence spectroscopies, and visible and infrared (VISIR; separately referred to as VIS and IR) reflectance spectroscopy. A remote micro-imager (RMI) provides high-resolution color context imaging, and a microphone can be used as a stand-alone tool for environmental studies or to determine physical properties of rocks and soils from shock waves of laser-produced plasmas.

Modified Brewster angle technique for the measurement of the refractive index of a DCG layer.

An improved Brewster angle technique for measurement of the refractive index of transparent materials in the form of thick and geometrically nonuniform layers on a much thicker substrate is presented. The technique's usefulness is demonstrated in application to the dichromated gelatin layers.

Holographic microinterferometer with noise suppression.

Holographic microinterferometer with the noise suppression is presented. The noise suppression method proposed consists of synchronous deflection of both beams. The method is applied on every step of the holographic process as well as during holographic interferometric investigations.

Holographic investigations of skin vibrations.

The paper describes preliminary results of the use of double-pulse holographic interferometry for vibration investigations of the skin surface of a singer's face (epiphysis), neck, larynx, and sternum. Holographic interferograms obtained in the experiment illustrate a dependence of the distribution of vibrations on the type of sound and on the fundamental frequency for the same person. The vibration interferograms of various persons are different even at the same sound and frequency.