RT & LT Objective Transmission
vacuum shroud for transmission measurements with an RT objective and a cold fiber/objective
This vacuum shroud is designed for transmission experiments with one room temperature objective, and one cold objective (LT-APO series). The min. working distances are 13 mm (RT) and 0.65 mm (LT) respectively. The shroud features 4x6 M6 breadboard mounting holes for the external objective, and and L-shaped sample holder with a 3 mm clear aperture as well as a thermalized mounting post and bracket for the LT-APO objective. It can host a stack of xyz nanopositioners for the sample, and upon request can potentially be modified to host another set of xyz positioners for the cold objective.

- attoDRY800 vacuum shroud for use with room temperature objective & LT APO cold objective, feat. 4x6 M6 breadboard mounting holes
- cold shield
- Cold plate
- 12.7 mm top and side windows (10 mm clear), fused silica (others on request); RT side working distance 13 mm
- ANPxy101/ANPz102 positioners
- ATC100/Si thermal link with integrated Si diode & heater
- l-shaped sample holder with 3 mm aperture for transmission incl. temp. sensor & heater
- mounting post for LT objective
- LT-APO objective, thermalized to cold plate
- feedthrough ring with blind flanges included, DC/SMA/fiber feedthroughs optional

- base temperature: 3.8 .. 4.4 K
- cooldown time (T<5 K): 4 .. 6 h
- configuration for use with external RT objective and an internal LT-APO objective
- WDmin (RT) = 13 mm; WD (LT-APO) = 0.65 mm
- 4x6 M6 breadboard mounting holes
- L-shaped sample holder with 3 mm aperture for transmission incl. temp. sensor & heater
- feedthrough ring with blind flanges included, DC/SMA/fiber feedthroughs optional