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. 2018 Jun 6;7:15. doi: 10.1038/s41377-018-0028-7

Fig. 5. Solid-state optical cryocooler design and assembly.

Fig. 5

a Cooled assembly consisting of a YLF:Yb crystal, YLF thermal link, and copper coldfinger. b Image of the cooled assembly showing the HgCdTe sensor payload attached to the coldfinger. c Cryocooler assembly sequence consisting of the insertion of seven aerogel cylinders (1), placement of the cooled assembly (2), installation of side and top clamshell layers (3,4,5), and positioning and alignment of Herriott cell mirrors (6)