Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical aspects of Near-Infrared Imager Spectrometer and Polarimeter
  instrument (NISP)   As a Near-IR instrument to PRL's upcoming 2.5 m telescope, NISP is designed
indigeniously at PRL to serve as a multifaceted instrument. Optical, Mechanical
and Electronics subsystems are being designed and developed in-house at PRL. It
will consist of imaging, spectroscopy and imaging-polarimetry mode in the
wavelength bands Y, J, H, Ks i.e. 0.8 - 2.5 micron. The detector is an 2K x 2K
H2RG (MCT) array detector from Teledyne, which will give a large FOV of 10' x
10' in the imaging mode. Spectroscopic modes with resolving power of R ~ 3000,
will be achieved using grisms. Spectroscopy will be available in single order
and a cross-dispersed mode shall be planned for simultaneous spectra. The
instrument enables multi-wavelength imaging-polarimetry using Wedged-Double
Wollaston (WeDoWo) prisms to get single shot Stokes parameters (I, Q, U) for
linear polarisation simultaneously, thus increasing the efficiency of
polarisation measurements and reducing observation time.

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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
7
The categories of this paper are: hep-th
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The categories of this paper are: econ
30
The categories of this paper are: q-alg
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The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: solv-int