“…In particular, 4WM in alkali atoms is extensively used in various applications, including photon storage [3,4] and quantum memories [5], the generation of single-photon sources [6], correlated photon pairs [7], the creation of entangled images [8], or the transfer of trans-spectral orbital angular momentum [9], to name a few. 4WM in alkali atoms has been investigated in various energy level schemes, such as double lambda [10,11], double ladder [12,13], or diamond [14][15][16][17]; it was examined in a wide range of platforms, including hot vapors [18,19], cold atoms [20], and hollow-core photonic crystal fibers [21].…”