Cryo-Optical Table - Quantum Optic Experiments
Quantum optics experiments often need cryogenic temperatures along with optical access to the sample space. A majority of experimental setups contain a number of optical elements that need to be accurately organized on an optical table in order to shape and prepare the incident light, and also to efficiently gather and then transform the emitted light from the sample. The available space on the optical table in such cases is of key importance to several complicated setups.
The innovative concept and design of the attoDRY800 presents the perfect solution to fulfill these challenging needs: it comprises of an ultra-low vibration cold breadboard platform which is totally integrated into an optical table. The cryocooler assembly is located in the otherwise vacant space underneath.
This unique design ensures a free workspace and unobstructed optical access to the cold sample from all directions on the optical table through four sides and one top window. Apochromatic objectives with high numerical aperture (NA=0.81-0.95) can either be integrated into the vacuum shield, into the cryostat, or put in close working distance next to the optical windows from the outside. This ensures optimal collection efficiency and extremely low drifts.
The attoDRY800, being a closed-cycle cryostat, is the perfect replacement for all helium flow cryostat installations, adding the immense benefit that it needs no liquid cryogens, thus reducing running costs. Additionally, a wholly automated temperature control between 3.8 and 320 K conveniently permits unattended long measurement cycles.
Most other off the shelf closed-cycle cryostats suffer from extreme vibrations at the sample location, which generally are in the range of many microns. The residual vibrations on the cold plate of the attoDRY800 were measured to be about 2.6 nm peak-to-peak (vertical direction) only because of a patented vibration isolation method. Thus, with the attoDRY800 even extremely sensitive measurements are possible. Its cold breadboard sample space is designed to host a number of attocube’s patented nanopositioners, and also full microscope or photonic probe station solutions.
Cryo-Optical Table Key Features
- Customizable vacuum shroud
- Low vibrations < 5 nm peak-to-peak
- Completely automated variable temperature 3.8 .. 320 K
- Cold breadboard integrated into optical table
Cryo-Optical Table Benefits
- High sample throughput because of rapid cool down
- Low running costs (no liquid cryogens)
- Obstruction-free workspace and optical access
- Flexible combination with attocube equipment: patented cryogenic positioning solutions with multi-degrees of freedom
- Optical table included (different sizes available)
- 36 customer wires included, heat sunk @ 4 K
- Turbo pump incl. base pressure in sample chamber <5e-6 mbar
Cryo-Optical Table Application Examples
- Quantum information processing
- Quantum dot spectroscopy
- Scanning probe microscopy
- Resonant fluorescence
- Plasmonics on 2D materials
- Reflectance/transmittance measurements
- Micro-Raman imaging and spectroscopy
- Optically detected nuclear magnetic resonance
- Optical resonators coupled to waveguides
- Time-resolved spectroscopy
Fields of Application
Quantum Dot Spectroscopy
Photocurrent / Photoconductivity Measurements
Micro-Raman Imaging / Spectroscopy
Optically Detected Nuclear Magnetic Resonance
Quantum Information Processing