Klosowski, Lukasz, Katarzyna Pleskacz, Szymon Wójtewicz, Daniel Lisak, and Mariusz Piwiński. “Optical System for Doppler Cooling of Trapped Calcium Ions”. Photonics Letters of Poland 9, no. 4 (December 31, 2017): pp. 119–121. Accessed November 20, 2024. http://m.photonics.pl/PLP/index.php/letters/article/view/9-43.