Searched for: author%3A%22Tamminen%2C+Aleksi%22
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Hu, Yong (author), Baggio, Mariangela (author), Dabironezare, Shahab Oddin (author), Tamminen, Aleksi (author), Toy, Brandon (author), Ala-laurinaho, Juha (author), Brown, Elliot (author), Llombart, Nuria (author), Deng, Sophie X. (author), Wallace, Vincent (author), Taylor, Zachary D. (author)
A system concept for online alignment verification of millimeter-wave, corneal reflectometry is presented. The system utilizes beam scanning to generate magnitude-only reflectivity maps of the cornea at 650 GHz and compares these images to a precomputed/measured template map to confirm/reject sufficient alignment. A system utilizing five off...
journal article 2022
Rezapoor, Pouyan (author), Tamminen, Aleksi (author), Tamminen, Aleksi (author), Ala-Laurinaho, Juha (author), Llombart, Nuria (author), Rodilla, Helena (author), Stake, Jan (author), Taylor, Zachary D. (author)
The optical behavior of a terahertz imaging system employing a train of four identical off-axis parabolic mirrors with oblique incidence angle illumination is investigated in this work. The aperture filling and aberrations of a single off-axis parabolic mirror when illuminated by a Gaussian terahertz beam at its focus point is measured and...
conference paper 2022
Gandini, E. (author), Tamminen, Aleksi (author), Luukanen, Arttu (author), Llombart, Nuria (author)
A wide field of view (FOV) inversely magnified dual-lens system for submillimeter wavelength imagers is presented in this paper. The antenna is designed for near-field focusing, at a range of 2.1 m from the primary aperture and to work in the frequency range from 200 to 600 GHz. The half-power beamwidth (HPBW) is 0.27° (1 cm in the image...
journal article 2018