Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Faculty Publications Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Bestha, Manjunath; Sivarani, Thirupathi; Wehbe, Bachar; Hasan, Amirul; Chandra, Bharat; Divakar, Devika K.; Unni, Athira; Menon, Parvathy; Surya, Arun; Saraf, Pallavi Title A name given to the resource A new broad-band atmospheric dispersion corrector for HROS-TMT Date A point or period of time associated with an event in the lifecycle of the resource 01-01-2025 Source A related resource from which the described resource is derived RAS Techniques and Instruments;Volume;4;Issue;;Article No.57 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1093/rasti/rzaf057" target="_blank" rel="noreferrer noopener">https://doi.org/10.1093/rasti/rzaf057</a> <br /><br /><a href="https://www.scopus.com/pages/publications/105029392026?origin=resultslist" target="_blank" rel="noreferrer noopener">https://www.scopus.com/pages/publications/105029392026?origin=resultslist</a> Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Bestha M., Indian Institute of Astrophysics, Bangalore, P-560034, India, Department of Applied Optics and Photonics, University of Calcutta, Kolkata, P-700106, India; Sivarani T., Indian Institute of Astrophysics, Bangalore, P-560034, India; Wehbe B., Instituto de Astrofica e Cicias do Espa, Universidade de Lisboa, Campo Grande, Lisboa, P-1749-016, Portugal, Departamento de Fica, Faculdade de Cicias, Universidade de Lisboa, Campo Grande, Lisboa, P-1749-016, Portugal; Hasan A., Indian Institute of Astrophysics, Bangalore, P-560034, India, Department of Physics and Electronics, Christ University, Bangalore, P-560029, India; Chandra P.B., Indian Institute of Astrophysics, Bangalore, P-560034, India; Divakar D.K., McDonald Observatory, University of Texas, Austin, P-78712, United States; Unni A., Department of Astronomy and Astrophysics, University of California, Santa Cruz, P-95064, United States; Menon P., Indian Institute of Astrophysics, Bangalore, P-560034, India, Department of Applied Optics and Photonics, University of Calcutta, Kolkata, P-700106, India; Surya A., Indian Institute of Astrophysics, Bangalore, P-560034, India; Saraf P., Indian Institute of Astrophysics, Bangalore, P-560034, India, Physical Research Laboratory, Astronomy and Astrophysics Division, Ahmadabad, P-380058, India Description An account of the resource Atmospheric dispersion causes light from celestial objects with different wavelengths to refract at varying angles as it passes through Earths atmosphere. This effect results in an elongated image at the focal plane of a telescope and diminishes fibre coupling efficiency into spectrographs. We propose an optical design that incorporates a Rotational Atmospheric Dispersion Corrector (RADC) to address the broad-band dispersion for the multi-object mode of the High-Resolution Optical Spectrograph (HROS) on the Thirty Meter Telescope (TMT). The RADC corrects the dispersion across the entire wavelength range (0.311 ?m), using Amici prisms optimized for over 90 per cent transmission efficiency and minimal angular deviation of the beam from the optical axis after dispersion correction. For enhanced accuracy, particularly in the blue region, we have, for the first time, implemented the Filippenko model in Zemax via a custom Dynamic-Link Library (DLL) file. The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society. Subject The topic of the resource atmospheric dispersion corrector; atmospheric effects; instrumentation; instrumentation: spectrographs; surveys; telescopes Publisher An entity responsible for making the resource available Oxford University Press Relation A related resource ISSN: 27528200; Language A language of the resource English Type The nature or genre of the resource Article Rights Information about rights held in and over the resource All Open Access; Gold Open Access Format The file format, physical medium, or dimensions of the resource online