DINU-JAEGER , N

In the LISA mission, the presence of stray light is a concern since a perturbation of the heterodyne phase measurement at the level of several µradian can give rise to significant noise in the LISA gravitational wave measurement. The perturbation scales as the square root of the stray light to nominal beam optical power ratio. Reaching very low...

This study investigates the effects of space environmental radiation on the performance of InGaAs Quadrant Photodiodes (QPDs) and assesses their suitability for the Laser Interferometer Space Antenna (LISA) mission. QPDs of 1.0, 1.5 and 2.0 mm have been irradiated with 20 and 60 MeV protons, 0.5 and 1 MeV electrons, and Co$^{60}$ gamma. An...

This study assesses the impact of space environmental radiation on low-noise Quadrant Photoreceivers (QPRs) for use in high-precision interferometric systems like the Laser Interferometer Space Antenna (LISA). InGaAs Quadrant Photodiodes (QPDs) of 1.0 mm, 1.5 mm, and 2.0 mm sizes were irradiated with 20 and 60 MeV protons, 0.5 and 1 MeV...