Sagnac interferometry and temporal cloaking via Raman gain Sana Ullah, Arif Ullah, M. Imtiaz Khan, Muhammad Javed, Mehdi Akermi and Muneerah Alomar EPL, 151 2 (2025) 25004 Published online: 14 August 2025 DOI: 10.1209/0295-5075/adee42