Radial modal transitions of Laguerre-Gauss modes during parametric up-conversion: Towards the full-field selection rule of spatial modes

Heralded Generation of Vectorially Structured Photons With a High Purity

“…We see that the vector profiles of the prepared SOC states, shown in the second row of Figures 4B,C, excellently coincide with the theoretical desired states. Particularly, the modes in the second group are the vector Ince-Gauss modes that were proposed in our recent work [24]. These modes are propagation invariant and thus can be regarded as eigen solutions of the vector paraxial wave equation in the corresponding elliptical cylindrical coordinates.…”

“…We see that, by using the corrected hologram, an exact LG 01 mode appears in the 1st order diffraction. Besides, Figure 2C provides a generation efficiency for various modes, where LG and IG denote Laguerre-and Ince-Gauss modes [21][22][23][24], respectively. We see that, due to the high reflectance of the used SLM, the measured 1st order diffraction efficiencies for all cases approach the theoretical limitation.…”

Developments of Picosecond Lasers Based on Stimulated Brillouin Scattering Pulse Compression

“…More recently, progress in the study on structured light, both in fundamental and application aspects, has significantly gained the research intertest in techniques for generation and manipulation of high-order spatial modes [36,37]. For the nonlinear approach, OAM transfer between light fields in varies optical parametric processes have been intensively studied over 20 years [38], and the community is recently focus on nonlinear generation and transformation generalized spatial modes and associated full-field selection rules [39,115], as well as the effect of spin-orbit coupling [116]. By contrast, SBS involving OAM carrying light was first studied in theory until 2009 [40], and the corresponding experimental demonstration only appeared the 5 years later [41].…”

“…systematically studied OAM selection rules in varies SBS processes, and first realized OAM interconversion between light and acoustic fields, a high-dimension light memory, and revealed the underlying physics for the fragmentation of vortex beams in SBS-PCMs [28,39], as shown in Figure 11.…”

“…Besides, driven by the recent advances in the field of structured light during the last two decades, generation and application of laser beams or pulses with high-order (scalar and vector) spatial modes have gained increasing attention [36,37]. Although the study on shaping light's spatial modes via nonlinear interactions can be traced back to the dawn of the field [38], the SBS involves structured light was theoretically considered until the last decade and only explored experimentally in recent years, yet demonstrating a series of impressive results [28,[39][40][41][42][43][44]. For years, detailed research works on SBS-based pulse compression technology had been hotly pursued by several groups.…”