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Quantum Design OptiCool® - 7 Tesla Optical Cryostat

7 Tesla Optical Cryostat

Quantum Design OptiCool®

The OptiCool by Quantum Design is a new optical cryostat using an innovative design that puts the sample volume in the heart of your optical environment. A custom 3.8 inch bore, split-coil, conical magnet offers fields perpendicular to the optical table up to ±7 tesla. The highly integrated design means, even with a magnet, your sample isn’t buried inside a large cryostat, far away from the optics. Seven side optical ports and one top optical port allow for optical access to your sample from a wide array of directions.

Possible applications for the OptiCool environment

  • MOKE / CryoMOKE
  • Raman / FTIR  Spectroscopy
  • Photoluminescence
  • UV / VIS Reflectivity & Absorption
  • AFM / Microscopy
  • NV / Color Defect / Vacancy Centers
  • Nanomagnetism
  • Time Resolved Magnetic Spectroscopy
  • Quantum Optics
  • Spintronics
OptiCool named a winner of the R&D 100 Award for 2018 in the category of Analytical/Test

The OptiCool optical cryostat is a cryogen-free system with automated software to control temperature and magnetic field. At the push of a button you can change your sample temperature from 1.7 K to 350 K, with or without an applied magnetic field. A generous 89 mm diameter by 84 mm tall sample volume provides exciting possibilities in experiment design.

Features

OptiCool® – 7 Tesla Optical Cryostat
  • 8 Optical Access Ports:
    • 7 Side Ports (NA > 0.11)
    • 1 Top Port (NA > 0.7)
  • Temperature Range: 1.7 K to 350 K
  • 7 T Split-Coil Conical Magnet
  • Low Vibration: <10 nm peak-to-peak
  • 89 mm x 84 mm Sample Volume
  • Automated Temperature & Magnet Control
  • Cryogen Free

Testimonials

Customizations

Sample Pods

OptiCool Standard Sample Pod
Standard Sample Pod

 

OptiCool Large Volume Sample Pod
Large Volume Sample Pod

The OptiCool's Sample Pod provides a place to build and customize your experiment on the bench. When you are ready to make a measurement, the Sample Pod easily plugs into the pre-wired temperature control column. Having multiple experiments arranged on multiple pods allows you to switch experimental hardware quickly. Sample Pods are available in both a standard configuration and a large-volume configuration depending on the experimental needs. Each type of pod can be further configured by changing the riser pieces (available in three lengths; included with the system) to adjust the height of the mounting plate.

  • Standard Sample Pod – Allows for mounting plate positions at 56.4 mm, 32.8 mm and 12.4 mm below the magnet center.
  • Large-Volume Sample Pod – Allows for mounting plate positions at 131.3 mm, 111.0 mm and 87.4 mm below the magnet center.

Optical Sample Pod Options

Wiring and Feedthroughs

Wiring and feedthrough options are available to get electrical and optical signals into and out of the OptiCool cryostat. Wiring options are permanently mounted in the cryostat, so are usually installed at the factory. The fiber feedthrough is easily installed or removed by the end user. Pick from the following options to meet your experimental needs:

  • Standard Sample Wiring – Each sample wiring assembly contains eight twisted pairs for a total of 16 wires. Four 4-pin connectors are presented on the pod to make contact to your sample.
  • 3-Axis Positioner Wiring – The positioner wiring assembly is designed to be compatible with attocube piezo positioner stacks. Each assembly has enough wires to run up to 3 different axes of motion with the RES position feedback. If position feedback is not required, the feedback wires can be repurposed to run an additional 3 axes of motion. Contact Quantum Design for more information.
  • RF Coax Wiring – The RF coax wiring assembly contains four coaxial cables capable of carrying high frequency signals up to 20 GHz.
  • Optical Fiber Feedthrough – Feed four or more optical fibers into the sample volume. Can also be used for other items such as gas tubes.

Wiring and Feedthrough Options

Sample Positioning

Many optical applications require precise positioning of the sample to the optical path for focusing or examination of an area of interest. The ability to scan the sample is also required for 2D imaging of sample properties. To meet these needs the OptiCool cryostat can be configured with a piezo-based nanopositioning stack to move your sample in situ. The nanopositioner option comes with all the adapters needed to mount the nanopositioners onto a pod, specialized cryostat wiring, cabling that can connect to the piezo controller, and a thermal link specifically designed for use in the OptiCool. The nanopositioner stack can be mounted on the standard pod or on the large-volume pod depending on experimental needs. Also available is a Rapid Thermal Stage that reduces the amount of time it takes to stabilize focus on your sample when ramping or changing temperature. Additionally, we offer a Wired Sample Mount that allows users to wire their samples to the 16 pads of a removable sample mount that comes equipped with a flex wiring cable that plugs easily into the sample pod.

OptiCool nanopositioner stack mounted on standard pod
OptiCool nanopositioner on standard pod
OptiCool nanopositioner stack mounted on large-volume sample pod
OptiCool nanopositioner on large-volume pod
OptiCool Rapid Thermal Stage mounted on Thermal Link plate
Rapid Thermal Stage mounted on Thermal Link plate
OptiCool Wired Sample Mount attached to Thermal Link plate
Wired Sample Mount attached to Thermal Link plate

Sample Positioner and Mounting Options

Windows and Objectives

Optical experiments can require a variety of windows and microscope objectives. To address these needs Quantum Design offers window and objective configuration options, including a low working-distance top window option, vacuum objective mounting hardware, and a bottom access window. The low working-distance top window reduces the minimum working distance from 15 mm to about 3 mm between the top of the outer window and the underside of the inner shield window. The hardware allows you to directly mount a wide variety of objectives at close spacing using the included window clamp and standard off-the-shelf adaptor rings. This means you can make adjustments or swap out objectives while the sample remains cold. Quantum Design also offers a Zeiss 100x LD EC Epiplan-Neofluar, infinity-corrected objective mounted inside the cryostat. This objective offers a 0.75 NA and a working distance of 4 mm. A kit is also available to mount your own objectives in vacuum if desired. A bottom access window is available for the cryostat, allowing transmission measurements along the magnet axis, perpendicular to the surface of the optical table.

OptiCool room temperature objective
OptiCool room temperature objective
OptiCool low working-distance window
OptiCool low working-distance window

Windows and Objectives

Videos

Resources

Publications

2024

Publication
Kravtsov, M., Shilov, A.L., Yang, Y. et al. Viscous terahertz photoconductivity of hydrodynamic electrons in graphene. Nature Nanotechnology (2024).
Publication
Shilov, A., Kashchenko, M., Peralta, P., Wang Y., Kravtsov, M., Kudriashov, A., Zhan, Z., Taniguchi, T., Watanabe, K., Slizovskiy, S., Novoselov, K., Fal’ko, V., Guinea, F., and Bandurin, D., High-Mobility Compensated Semimetals, Orbital Magnetization, and Umklapp Scattering in Bilayer Graphene Moiré Superlattices. ACS Nano (2024).

2023

Publication
Dapolito, M., Tsuneto, M., Zheng, W. et al., Infrared nano-imaging of Dirac magnetoexcitons in graphene. Nature Nanotechnology (2023).
Publication
R. Xiong, J. H. Nie, S. L. Brantly, P. Hays, R. Sailus, K. Watanabe, T. Taniguchi, S. Tongay, and C. Jin, Correlated Insulator of Excitons in WSe2/WS2 Moiré Superlattices. Science 380, 860 (2023).
Publication
J.-X. Qiu et al., Axion Optical Induction of Antiferromagnetic Order. Nat. Mater. (2023).
Publication
Y.-F. Zhao, R. Zhang, J. Cai, D. Zhuo, L.-J. Zhou, Z.-J. Yan, M. H. W. Chan, X. Xu, and C.-Z. Chang, Creation of Chiral Interface Channels for Quantized Transport in Magnetic Topological Insulator Multilayer Heterostructures. Nat Commun 14, (2023).
Publication
J. Nelson et al., Layer-Dependent Optically Induced Spin Polarization in InSe. Phys. Rev. B 107, (2023).

2022

Publication
H. Padmanabhan et al., Large Exchange Coupling Between Localized Spins and Topological Bands in MnBi2Te4. Advanced Materials 34, 2202841 (2022).
Publication
M. H. Naik, E. C. Regan, Z. Zhang, Y.-H. Chan, Z. Li, D. Wang, Y. Yoon, C. S. Ong, W. Zhao, S. Zhao, M. I. B. Utama, B. Gao, X. Wei, M. Sayyad, K. Yumigeta, K. Watanabe, T. Taniguchi, S. Tongay, F. H. da Jornada, F. Wang, S. G. Louie, Intralayer charge-transfer moiré excitons in van der Waals Superlattices. Nature. 609 (2022), pp. 52–57.
Publication
Z. Zhang, E. C. Regan, D. Wang, W. Zhao, S. Wang, M. Sayyad, K. Yumigeta, K. Watanabe, T. Taniguchi, S. Tongay, M. Crommie, A. Zettl, M. P. Zaletel, F. Wang, Correlated interlayer exciton insulator in heterostructures of monolayer WSe2 and moiré WS2/WSe2. Nat. Phys. (2022).
Publication
G. Mayonado, K. T. Vogt, J. D. B. Van Schenck, L. Zhu, G. Fregoso, J. Anthony, O. Ostroverkhova, M. W. Graham, High-Symmetry Anthradithiophene Molecular Packing Motifs Promote Thermally Activated Singlet Fission. J. Phys. Chem. C. 126 (2022), pp. 4433–4445.
Publication
J. Cenker, S. Sivakumar, K. Xie, A. Miller, P. Thijssen, Z. Liu, A. Dismukes, J. Fonseca, E. Anderson, X. Zhu, X. Roy, D. Xiao, J.-H. Chu, T. Cao, X. Xu, Reversible strain-induced magnetic phase transition in a van der Waals magnet. Nat. Nanotechnol. 17 (2022), pp. 256–261.
Publication
H. Padmanabhan, M. Poore, P. K. Kim, N. Z. Koocher, V. A. Stoica, D. Puggioni, H. (Hugo) Wang, X. Shen, A. H. Reid, M. Gu, M. Wetherington, S. H. Lee, R. D. Schaller, Z. Mao, A. M. Lindenberg, X. Wang, J. M. Rondinelli, R. D. Averitt, V. Gopalan, Interlayer magnetophononic coupling in MnBi2Te4. Nat Commun. 13 (2022).

2021

Publication
T. Song, E. Anderson, M. W.-Y. Tu, K. Seyler, T. Taniguchi, K. Watanabe, M. A. McGuire, X. Li, T. Cao, D. Xiao, W. Yao, X. Xu, Spin photovoltaic effect in magnetic van der Waals heterostructures. Sci. Adv. 7 (2021).
Publication
Y. Jia, P. Wang, C.-L. Chiu, Z. Song, G. Yu, B. Jäck, S. Lei, S. Klemenz, F. A. Cevallos, M. Onyszczak, N. Fishchenko, X. Liu, G. Farahi, F. Xie, Y. Xu, K. Watanabe, T. Taniguchi, B. A. Bernevig, R. J. Cava, L. M. Schoop, A. Yazdani, S. Wu, Evidence for a monolayer excitonic insulator. Nat. Phys. 18 (2021), pp. 87–93.

2020

Publication
D. J. Lovinger, E. Zoghlin, P. Kissin, G. Ahn, K. Ahadi, P. Kim, M. Poore, S. Stemmer, S. J. Moon, S. D. Wilson, R. D. Averitt, Magnetoelastic coupling to coherent acoustic phonon modes in the ferrimagnetic insulator GdTiO3. Phys. Rev. B. 102 (2020).

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