Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magneto-Optical Properties of InSb for Infrared Spectral Filtering   We present measurements of the Faraday effect in n-type InSb. The Verdet
coefficient was determined for a range of carrier concentrations near $10^{17}$
$\text{cm}^{-3}$ in the $\lambda$ = 8 $\mu$m - 12 $\mu$m long-wave infrared
regime. The absorption coefficient was measured and a figure of merit
calculated for each sample. From these measurements, we calculated the carrier
effective mass and illustrate the variation of the figure of merit with
wavelength. A method for creating a tunable bandpass filter via the Faraday
rotation is discussed along with preliminary results from a prototype device.

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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: cs