Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance of Large-Format Deformable Mirrors Constructed with Hybrid
  Variable Reluctance Actuators II: Initial Lab Results from FLASH   Advancements in high-efficiency hybrid variable reluctance (HVR) actuators
are an enabling technology for building the next generation of large-format
deformable mirrors, including adaptive secondary mirrors. The Netherlands
Organization for Applied Scientific Research (TNO) has developed a new style of
hybrid variable reluctance actuator that requires approximately seventy-five
times less power to operate as compared to the traditional style of voice-coil
actuators. We present the initial performance results from laboratory testing
of TNO's latest 19-actuator prototype deformable mirror, FLASH. We report the
actuator cross-coupling, linearity, hysteresis, natural shape flattening, and
drift as measured with a Zygo interferometer and a set of four capacitive
sensors. We also present results of the dynamic performance of the FLASH on
sub-millisecond timescales to estimate the limits of this technology for
high-contrast imaging adaptive optics. We confirm that this technology has
strong potential for use in on-sky adaptive secondary mirrors without the need
for active cooling.

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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
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The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: econ
14
The categories of this paper are: math-ph
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The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn