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attoCFM I
low temperature, scanning confocal microscope, highly modular and flexible
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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
the modular beam splitter head which is positioned outside of the
cryostat. Furthermore, the free-beam optical design allows to adjust
the excitation and the collection port completely independent.
Thus, filtering of the excitation and collection signal enables
also applications as e.g. raman spectroscopy. The easy handling
opens up new possibilities in quantitative surface characterization
in the submicron range.

Principle - A schematic drawing of the confocal
setup in attoCFM I is shown to the left. A laser beam is coupled
into a single mode
optical illumination fiber. Part of this light is reflected on
the beam splitter and focused on the sample (free-beam optics inside
cryostat). The reflected light from the sample is captured by the
collection fiber, which is also the blocking pinhole aperture when
collecting the scattered light from the sample for the confocal
setup.
Objective Systems - attocube systems offers several objectives
which can be adjusted depending on your experimental requirements,
the wavelength range, working distance, and other parameters. For
customized solutions, please contact our office.
Request Quotation & Support : |
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Available
Controller for this Product:
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SPM controller
with xy-scan generator incl. feedback control und fully digital
phase locked loop (PLL)
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Piezo step controller for coarse
positioning | 1, 3 or 6-axes control | Optional: TFT-display,
TTL-input |
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Piezo scan
controller for ultra high resolution scan |
1 to 6-axes control
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Complete
System Solutions:
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Complete system
configurations for this product. 
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A color-scale plot of the photoluminescence
(PL) versus gate voltage showing the discrete spectral lines of a quantum dot
recorded with the attoCFMI at a cryogenic temperature of 1.6K. (‘Optical
emission from a charge-tunable quantum ring‘by R. J. Warburton et.
al. 2000 Nature 405, 926) |
| Confocal image of a chess board grating (SiO2 on Si)
with a period of 2 mm, recorded in reflection mode. The
sample has some defects on the surface structure which
are clearly resolved. The image was recorded with the attoCFMI
in reflection mode. |
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