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 shrouds, lt objective/fiber transmission, overview
  1. attoDRY800 vacuum shroud for use with room temperature objective & LT APO cold objective, feat. 4x6 M6 breadboard mounting holes
  2. cold shield
  3. Cold plate
  4. 12.7 mm top and side windows (10 mm clear), fused silica (others on request); RT side working distance 13 mm
  5. ANPxy101/ANPz102 positioners and optional ANS100xy scanner
  1. ATC100/Si thermal link with integrated Si diode & heater
  2. l-shaped sample holder with 3 mm aperture for transmission incl. temp. sensor & heater
  3. mounting post for LT objective
  4. LT-APO objective, thermalized to cold plate
  5. feedthrough ring with blind flanges included, DC/SMA/fiber feedthroughs optional
attodry800 shrouds, lt objective/fiber transmission, open
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  • 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