Optical aspects of Near-Infrared Imager Spectrometer and Polarimeter instrument (NISP)
| العنوان: | Optical aspects of Near-Infrared Imager Spectrometer and Polarimeter instrument (NISP) |
|---|---|
| المؤلفون: | Sachindra Naik, Prachi Vinod Prajapati, Kiran S. Baliyan, Satya N. Mathur, Sukamal K. Paul, Deekshya Roy Sarkar, Alka Singh, Amish B. Shah, Shashikiran Ganesh, Pitambar S. Patwal, Prashanth Kumar Kasarla, Archita Rai, Hitesh Kumar L. Adalja |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Spectrometer, business.industry, Detector, Near-infrared spectroscopy, Polarimetry, FOS: Physical sciences, Polarimeter, law.invention, Telescope, symbols.namesake, Optics, law, symbols, Stokes parameters, Spectroscopy, business, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM) |
| الوصف: | 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. 8 pages, 10 figures, Submitted to SPIE Conference Astronomical Telescopes + Instrumentation 2020 |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1eb913973dcda08590a59227b3437efd http://arxiv.org/abs/2012.08563 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....1eb913973dcda08590a59227b3437efd |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |