Novel Sub-Kelvin Cryogen-free Refrigeration at Zero Point Cryogenics

In general, quantum technologies must be operated in the sub 1 K regime, a demanding area of cryogenics. In fact, the technologies to reach below 1 K with continuous operation are few and far between, and therefore the dilution refrigerator, capable of continuous operation in the mK regime is often the preferred choice. I will begin by reviewing the principles of operation of a dilution refrigerator, and tell you about some of the advances in dilution refrigerator technology that we have made at Zero Point Cryogenics. Following this, I will describe our new, patent-pending technology that we call the phase separation refrigerator. It allows continuous operation below 500 mK, with very fast start-up and minimal 3He usage. We believe this will find significant applications in the future of quantum technologies.