Abstract: A sample mounting apparatus for a cryo-cooler is provided having a housing with an outer wall surface for connecting to the cryo-cooler, and an inner wall surface. An inert gas is sealed inside the housing for thermal transfer, and a delicate mount is attached to the inner wall surface of the housing for supporting the sample and substantially preventing vibrations from being transferred to the sample from the cryo-cooler.

Abstract: Techniques for spatial spectral holography include a doped crystal comprising Thulium doped into a host crystal of Yttrium Lutetium Aluminum Garnet wherein a concentration of Thulium atoms is less than 3 atomic percent. Techniques further include an apparatus with a source for optical electromagnetic radiation and a cryocooler configured to maintain an operating temperature in a range from about 3 Kelvin to about 6 Kelvin. The cryocooler includes a first optical window. The apparatus also includes a doped crystal comprising Thulium doped into a host crystal of Yttrium Lutetium Aluminum Garnet disposed inside the cryocooler in a position to be illuminated by incident optical electromagnetic radiation derived from the source. The apparatus also includes a detector configured to detect optical electromagnetic radiation emitted from the doped crystal. Techniques include a method for using at least one of the above doped crystals.

Abstract: A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be cooled while dampening the external vibrations caused by the cryo-cooler, the surrounding environment or cryo-cooler mounting surface. The thermal link is made of thermally conductive wires which connect the nested thermally insulated structure and the cryo-cooler thereby allowing the apparatus to reduce vibrations inherent in the operation of the cryo-cooler.

Abstract: A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be cooled while dampening the external vibrations caused by the cryo-cooler, the surrounding environment or cryo-cooler mounting surface. A vacuum plate is removably attached to the vacuum shroud to provide access to the sample chamber.

Abstract: A method of rotating a sample for use in a cryocooler, having the steps of mounting a sample in a sample mounting apparatus, the apparatus comprising a housing having an outer wall surface, an inner wall surface, a mount attached to the inner wall surface for supporting the sample, and a motor for rotating the sample, and an exchange gas to provide thermal communication between the moving sample and the inner housing surfaces; sealing the housing by applying a sealant to adjoining parts of the housing such that the joints are air tight; evacuating the housing; adding an inert gas to the housing; sealing the inert gas in the housing; attaching the outer wall surface of the housing to a cryocooler; and rotating the sample by engaging the motor. Also disclosed is a cryogenic apparatus having a sample holder; a cryo-cooler; a thermal link connecting the sample holder and the cryo-cooler; and a motor attached to the sample holder for rotating a sample.

Abstract: A method of rotating a sample for use in a cryocooler, having the steps of mounting a sample in a sample mounting apparatus, the apparatus comprising a housing having an outer wall surface, an inner wall surface, a mount attached to the inner wall surface for supporting the sample, and a motor for rotating the sample, and an exchange gas to provide thermal communication between the moving sample and the inner housing surfaces; sealing the housing by applying a sealant to adjoining parts of the housing such that the joints are air tight; evacuating the housing; adding an inert gas to the housing; sealing the inert gas in the housing; attaching the outer wall surface of the housing to a cryocooler; and rotating the sample by engaging the motor. Also disclosed is a cryogenic apparatus having a sample holder; a cryo-cooler; a thermal link connecting the sample holder and the cryo-cooler; and a motor attached to the sample holder for rotating a sample.

Abstract: A sample mounting apparatus for a cryo-cooler is provided having a housing with an outer wall surface for connecting to the cryo-cooler, and an inner wall surface. An inert gas is sealed inside the housing for thermal transfer, and a delicate mount is attached to the inner wall surface of the housing for supporting the sample and substantially preventing vibrations from being transferred to the sample from the cryo-cooler.

Abstract: A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be cooled while dampening the external vibrations caused by the cryo-cooler, the surrounding environment or cryo-cooler mounting surface. The thermal link is made of thermally conductive wires which connect the nested thermally insulated structure and the cryo-cooler thereby allowing the apparatus to reduce vibrations inherent in the operation of the cryo-cooler.