Cryostat optique 4K

Cryostation de Montana Instruments

La Cryostation, un cryostat optique de Montana Instruments avec un circuit fermé d'hélium, est particulièrement adaptée aux expériences optiques exigeantes en raison de son faible niveau de vibration. Le cryostat offre une plage de température allant de 3,2 K à 350 K. Le fonctionnement entièrement automatisé permet d'économiser beaucoup d'efforts dans les mesures cryogéniques qui prennent naturellement beaucoup de temps. Après avoir introduit l'échantillon et réglé un point de consigne, la cryostation atteint automatiquement la température choisie et la maintient avec une stabilité maximale. Le système peut être configuré pour répondre à des besoins individuels.

Caractéristiques

Gamme de température de 3,2K à 350K
Vibrations à l'échelle du nanomètre
Stabilité à haute température
Accès optique à l'espace libre
Nombreuses options, y compris un objectif et un aimant NA élevé

Plus d'informations

The Cryostation is established as standard for sophisticated optical experiments. Extremely low vibrations at the sample allow challenging applications such as microscopy, cavities and opto-mechanics.

The system can be freely placed on the optical table just as any other optical component. That makes it easy to enhance an existing setup by the cryostat. Free-space optical access via 5 viewports provides high flexibility. The Cryostation can be precisely tailored to individual requirements by an enormous set of options. DC, RF, fiber or gas feedthroughs can be installed together with options for magnetic field and high NA microscopy. Many different housing styles and sample holders are available. That saves money and time when setting up the experiment in the lab. Our Cryostation is the most flexible system in the market.

Operation is fully automated by the cryostat including vacuum pump out, cooldown, temperature stabilization at setpoint, warm-up, and purge with dry nitrogen to keep the system surfaces, sample and optics clean. The compressor utilizes special variable helium flow technology. Its parameters are automatically optimized to minimize cooldown time, conserve power and reduce wear on the system. Since most of the experiment is performed at a stable temperature setpoint, the system operates at an input power that is appropriate for the sample temperature. The settings may be adjusted to optimize the cooling power or lower vibration.

The cryostat sample mount incorporates custom filament-wound materials and an engineered platform which maximizes strength and compensates for thermal contraction. This provides a rigid connection to the optics table with little or no drift with each new setpoint.

Modèles

Comparision

	CryoCore	CryoAdvance-50	CryoAdvance-100	s200
Base temperature	✔✔	✔✔✔✔✔	✔✔✔✔	✔✔✔
Vibrations	✔✔	✔✔✔✔✔	✔✔✔✔	✔✔✔✔
Sample space	✔✔	✔✔✔	✔✔✔✔	✔✔✔✔✔
Cool down time	✔✔✔✔	✔✔✔✔	✔✔✔✔	✔✔
Costs	✔✔✔✔✔	✔✔✔✔✔	✔✔✔	✔✔