4 papers
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…