2022
DOI: 10.1063/5.0086930
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Enhancing the efficiency of the topological phase transitions in spin–orbit photonics

Abstract: A light beam reflected and refracted at a sharp interface can acquire a momentum-dependent Pancharatnam–Berry (PB) phase, which produces a topological phase transition from one kind of spin–orbit interaction (e.g., spin-controlled vortex generation) to another (e.g., photonic spin-Hall effect). However, this process is extremely inefficient and difficult to observe directly in experiments, which also hinders its applications. Here, we propose to enhance significantly the topological phase transitions by c-cut … Show more

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Cited by 11 publications
(4 citation statements)
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“…Furthermore, multipledimensional light manipulation including polarization amplitude, polarization phase, complex amplitude, phase-dispersion engineering, and VOF [116][117][118][119][120][121] can be realized. Recently, progress in geometric phase inside a light beam at a sharp interface has provided very different geometric-phase-enabled novel phenomena distinct from those reviewed in this paper [122,123] . For example, a wave-vector-varying PB phase has been found that arises naturally in the transmission and reflection processes in homogeneous media for paraxial beams with small incident angles [124] .…”
Section: Discussionmentioning
confidence: 88%
“…Furthermore, multipledimensional light manipulation including polarization amplitude, polarization phase, complex amplitude, phase-dispersion engineering, and VOF [116][117][118][119][120][121] can be realized. Recently, progress in geometric phase inside a light beam at a sharp interface has provided very different geometric-phase-enabled novel phenomena distinct from those reviewed in this paper [122,123] . For example, a wave-vector-varying PB phase has been found that arises naturally in the transmission and reflection processes in homogeneous media for paraxial beams with small incident angles [124] .…”
Section: Discussionmentioning
confidence: 88%
“…the spin-dependent transverse displacement of the centroid of the beam) without a hole represents another type of topological state [4,6,15,16]. Therefore, changing the relative weights of these two OAM contributions makes a transition between these two types of SOIs, which can be regarded as a topological phase transition (TPT) [17][18][19][20][21][22][23].…”
Section: Introductionmentioning
confidence: 99%
“…Numerous methods have been proposed to manipulate the TPT [20,22,24]. A common category of these methods involves modulating the properties of the light beam, such as the incident angle, angular momentum, and spatial structure.…”
Section: Introductionmentioning
confidence: 99%
“…The conversion from the SAM to the IOAM produces spincontrollable vortices [33][34][35][36], and the conversion from the SAM to the EOAM results in the photonic spin Hall effect [37][38][39][40][41]. In recent years, these two kinds of spin-orbit interactions have been studied in many systems [32][33][34][35][36][37][38][39][40][41], and a topological transition from one kind of spin-orbit interaction to another may occur in a same system [42][43][44]. This topological phase transition process can be understood and explained by a vortex mode decomposition method [2,43,[45][46][47][48].…”
Section: Introductionmentioning
confidence: 99%