From the 2 of 6 linked papers with an AI index.
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Optical design of a direct fibre-fed MO-IFS for the NLOT
Nitish Singh, S. Sriram, Totan Chand +3
The paper describes the initial optical design and performance predictions for a dual‑channel, fibre‑fed multi‑object integral field spectrograph (MO‑IFS) intended for the future N…
Design and Development of a Lab Prototype of a Fiber-Based Integral Field Spectrograph
Nitish Singh, S Sriram, Jurgen Schmoll +1
The paper describes the design, construction, and laboratory testing of a compact, fiber‑based integral field spectrograph prototype, featuring a 37‑fiber hexagonal IFU and achievi…
Design of a three-lens wide field corrector with aspherical surfaces for the 2.34-m VBT
Nitish Singh, S. Sriram, Bharat Kumar Yerra
We are developing a compact three-element Wide Field Corrector (WFC) with spherical and aspherical lenses for the 2.34 m Vainu Bappu Telescope (VBT) to enhance its field coverage f…
Design and Fabrication of a lightweight three-lens corrector system for the 2.34-m Vainu Bappu Telescope
Nitish Singh, S. Sriram, Ramya Sethuram +8
The Vainu Bappu Telescope (VBT) is a 2.34-m reflector, primarily supported on-axis field of view, offering high-resolution and low-to-medium resolution spectroscopic observations i…
Theoretical Analysis of Fiber Arrangements for Improved Coupling Efficiency in the VBT High-Resolution Echelle Spectrograph
Nitish Singh, S. Sriram, Bharat Kumar Yerra +1
In fiber-based spectroscopy within telescopes, a prevailing limitation has been the necessity to align the fiber diameter with the telescope's seeing conditions, often characterize…
Design for Enabling Echelle and OMR Spectrograph Observations for Point and Extended Sources on the Same Night at VBT
Nitish Singh, S. Sriram, Bharat Kumar Yerra +1
The 2.34m Vainu Bappu Telescope (VBT) is a reflecting telescope that operates in two modes, prime focus and cassegrain focus, and is equipped with two instruments. In prime focus m…