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Cryogenic Confocal Imaging

Cryogenic Confocal Imaging
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Cryogenic Confocal Imaging

Product catalog summary
Introduction
The document is a comprehensive brochure from attocube systems AG, focusing on their multichannel low temperature confocal microscopes, specifically the attoCFM series. These microscopes are engineered for cryogenic optical investigations, providing high-resolution imaging and spectroscopy at low temperatures. Additionally, the document discusses advanced techniques in semiconductor quantum dots and cryogenic microscopy, emphasizing their potential in quantum computing and other applications.
Specifications and Features
The attoCFM series is characterized by its modular design, allowing for customization and integration into various experimental setups. Key features include:
  • Exceptional stability for long-term experiments.
  • Compatibility with millikelvin temperatures and high magnetic fields (> 15 T).
  • Diffraction-limited spatial resolution with a positioning range of 5 x 5 x 5 mm3 at low temperatures.
  • Modular optical head with up to three optical channels for confocal excitation and detection.
  • Exchangeable optical components such as filters and polarizers.
The document also details the use of a dilution refrigerator with a cooling power of 400 μW at 120 mK, achieving a base temperature of less than 44 mK, and the use of confocal microscopy at 50 mK for studying quantum dots.
Applications
The attoCFM microscopes are suitable for a wide range of applications, including cryogenic photoluminescence and Raman spectroscopy, quantum dot optics, solid-state physics, and biological research. The document highlights the benefits of advanced microscopy techniques for studying quantum devices, emphasizing high stability, low drift, and precise alignment.
Performance and Benefits
The brochure emphasizes the performance benefits of the attoCFM series, such as high measurement sensitivity and stability, large temperature range compatibility (mK to 373 K), fast cool-down times, and minimized drifts. It also highlights the development of cryogenic Raman spectroscopy and cryogenic in-situ optical lithography for device fabrication.
Technological Advancements
The document discusses advancements in cryogenic microscopy and quantum dot technology, offering significant potential for future applications in quantum computing and other fields. It also describes fiber-based confocal microscopes designed for high stability and combined atomic force and confocal microscopes for mapping magnetic field distributions with nanoscale resolution.
Cryogen-Free Systems
The attoDRY500-CFM and attoDRY1100 systems integrate cryogen-free cooling platforms with optical confocal microscope heads, enabling various measurements such as pump-probe experiments and Raman microscopy. Key features of the attoDRY1100 include ultra-low vibrations, no need for liquid helium, a 9 T superconducting magnet, and fully automated operation.
Conclusion
The attoCFM series by attocube systems AG offers advanced capabilities for cryogenic confocal microscopy, making it a valuable tool for researchers in various scientific fields. Its modular design and high-performance features ensure precise and reliable measurements in extreme environments. The advancements in cryogenic microscopy and quantum dot technology are poised to drive future innovations in quantum computing and other areas.
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Catalog excerpts

Cryogenic Confocal Imaging-1

Multichannel Low Temperature Confocal Microscopes © 2012, attocube systems AG - Germany. attocube systems and the logo are trademarks of attocube systems AG. Registered and/or otherwise protected in various countries where attocube systems products are sold or distributed. Other brands and names are the property of their respective owners. attocube systems AG | Königinstrasse 11a (Rgb) | D - 80539 München | Germany Tel.: +49 89 2877 809 - 0 | Fax: +49 89 2877 809 - 19 | [email protected] www.attocube.com Brochure version: 2012 - 01

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Cryogenic Confocal Imaging-2

Explore the World of Nano-Optics multichannel cryogenic confocal microscopes For many years, attocube systems has been pioneering cryogenic confocal microscopy. With the introduction of the attoCFM series of confocal microscopes almost a decade ago, the optical investigation of single quantum devices on the sub-micron scale at low temperature suddenly became available as a standard tool for scientists worldwide. Now once again, the attoCFM-MC is redefining the state-of-the-art for low temperature confocal microscopy. To improve the image quality in high resolution microscopy, confocal microscopes...

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Cryogenic Confocal Imaging-3

Stable. Modular. Easy to use. the all-new optical head from the pioneers of cryogenic confocal microscopy The novel multipurpose optical head provides an ideal platform for a large variety of measurement tasks in the field of confocal microscopy, while setting new standards for stability and ease-ofuse. At the heart of the optical head, there are up to three identical channels, which can be used for confocal excitation and detection of free-beam optical signals. Each channel features a FC/APC fiber port to connect to a laser source or an appropriate detector (such as a Si detector for photoluminescence...

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Cryogenic Confocal Imaging-4

attoCFM I low temperature confocal microscope, free-beam optics The attoCFM I has been developed to offer highest flexibility in order to enable adaptation of the experimental setup according to the customer‘s needs. This flexibility is realized by a modular beam splitter head which is positioned outside of the cryostat. Furthermore, the free-beam optical design allows a completely independent adjustment of the excitation and collection port. Therefore, applications such as Raman spectroscopy become accessible by appropriately filtering the excitation and collection signals. The easy handling...

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Cryogenic Confocal Imaging-5

your optical table goes cryogen free! The attoCFM-DRY is a low temperature compatible confocal microscope dedicated to perform cryogenic optical experiments on any optical table. The main concept of this development is to offer an ultra-high numerical aperture, apochromatic confocal table-top microscope dedicated for cryogen-free low temperature operation. To achieve this task, attocube has implemented a new apochromatic objective, providing an enhanced level of chromatic aberration correction with a numerical aperture (NA) of up to 0.95. As a result, ultra-high resolution images and spectra...

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Cryogenic Confocal Imaging-6

Photoluminescence. Fluorescence selected applications for cryogenic confocal microscopy Confocal Microscopy on Quantum Dots at 50 mK Particularly, the observation of the optical transitions is the main tool to the basis for the application of quantum dots as laser emitters, storage devices or for quantum information processing. Semiconductor quantum dots have also been found to be attractive for the realization of spin quantum bits, as they can be controllably positioned, electronically coupled and embedded into active devices. These quantum bits represent the fundamental logical unit in a quantum...

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Cryogenic Confocal Imaging-7

Cryogenic Raman Spectroscopy selected applications for cryogenic confocal microscopy The cryogenic Raman instrument combines a high resolution, low temperature confocal microscope with ultra sensitive Raman optics. This innovative product enables state of the art confocal Raman measurements at cryogenic environments combined with magnetic fields of up to 16 T. The attoRAMAN is a ready-touse system and is delivered with Raman laser source (532 nm / 633 nm wavelength as excitation source available), ultra-high throughput spectrometer including a peltier-cooled, back-illuminated CCD, and a state-of-the-art...

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Cryogenic Confocal Imaging-8

Low Temperature Photolithography selected applications for cryogenic confocal microscopy BENEFITS + closed loop control + extremely stable against vibrations + ultra low drifts + reproducible alignment method + flexibility (easy mounting of optical components like filters, polarizers, etc. .) + modular optical setup Long term drift measurements recorded on a single quantum object using all three channels of the attoCFM-MC. The position drifts during 20 hrs of measurement time account for less than ±10 nm/hr in X and Y direction. Image size is 1.25 μm x 1.25 μm. 3 COLOR SPOT ALIGNMENT WITH A RESOLUTION...

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Cryogenic Confocal Imaging-9

Optional Configurations your choice: transmission or fiber-based setups FIBER BASED CONFOCAL MICROSCOPES FOR HIGHEST STABILITY combined atomic force and confocal microscopy | alternative cryogen-free setup COMBINED ATOMIC FORCE AND CONFOCAL MICROSCOPE Principle. The fiber based attoCFM II is a compact confocal microscope, which is designed for long-term analysis. The key-feature of this system is its unprecedented stability allowing ultra stable, long-term investigations over extended periods of time as the excitation and emission radiation is directly coupled via a single mode fiber into the...

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Cryogenic Confocal Imaging-10

Looking for a suitable Cryostat ? Creating scientific impact top-loading cryogen-free and Helium based systems with fast turn-around times | PPMS compatible selected customer publications 2009 - 2011 The attoDRY1100 is the perfect cryogen-free cooling platform for high resolution scanning probe experiments. KEY FEATURES OF THE ATTODRY1100 + ultra low vibrations + no liquid He needed + 9 T superconducting magnet (standard), vector and others magnets available on request + top loading design + cooldown time from 300 to 4 K : ~ 5 h + NEW: fully automated, turnkey operation L. Robledo, L. Childress,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.