Searched for: subject%3A%22Gaussian%255C+beam%22
(1 - 5 of 5)
document
Davis, Kristina K. (author), Yates, Stephen J.C. (author), Jellema, Willem (author), Groppi, Christopher E. (author), Baselmans, J.J.A. (author), Kohno, Kotaro (author), Baryshev, Andrey M. (author)
Complex field mapping is a powerful tool to characterize the optical performance of astronomical instruments, and has become the standard for characterizing heterodyne array cameras. Recently, an adaptation of the heterodyne beam mapping technique was demonstrated on a single pixel of a direct detector instrument. We present a novel...
journal article 2019
document
Anand, C. (author), Groves, R.M. (author), Benedictus, R. (author)
Ultrasonic testing using arrays is becoming widely used to test composite structures in the Aerospace industry. In recent years, the Full Matrix Capture (FMC) technique has been implemented to extract the signals for post-processing to form an image. The inherent anisotropy and the layering of the structure pose challenges for the...
journal article 2020
document
Anand, C. (author), Groves, R.M. (author), Benedictus, R. (author)
There has been an increase in the use of ultrasonic arrays for the detection of defects in composite structures used in the aerospace industry. The response of a defect embedded in such a medium is influenced by the inherent anisotropy of the bounding medium and the layering of the bounding medium and hence poses challenges for the...
journal article 2021
document
Yunus, F. (author), Casalino, D. (author), Avallone, F. (author), Ragni, D. (author)
Efficient calculation of urban air mobility noise footprint in a vertiport environment, considering acoustic effects of various designs, operational conditions, and environmental factors, is essential to limit the noise impact on the community at an early stage. To this purpose, the computationally efficient low-fidelity approach presented by...
journal article 2023
document
Hoogenberg, Friso (author)
Gravitational waves predicted by Einstein have been measured in a few observatories worldwide. These detectors are complex interferometers with sizes of kilometers. Misalignments and aberrations in their optical set-up can create higher-order modes in the laser beam. These higher-order mode effects should be compensated to improve the...
master thesis 2023
Searched for: subject%3A%22Gaussian%255C+beam%22
(1 - 5 of 5)