Incident-polarization-sensitive and large in-plane-photonic-spin-splitting at the Brewster angle

Qiu, Xiaodong; Zhang, Zhiyou; Xie, Linguo; Qiu, Jiangdong; Gao, Fuhua; Du, Jia

doi:10.1364/ol.40.001018

Cited by 67 publications

(34 citation statements)

References 22 publications

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“…For a two-dimensional (2D) Gaussian beam, however, the OPSS could only reach 0.4 w 0 . It was demonstrated recently that the IPSS could also be enhanced near Brewster incidence 17 . The IPSS shows advantage over the OPSS since it can be tuned flexibly by the incident polarization state.…”

Section: Introductionmentioning

confidence: 99%

The upper limit of the in-plane spin splitting of Gaussian beam reflected from a glass-air interface

Guan

et al. 2017

Sci Rep

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Optical spin splitting has a promising prospect in quantum information and precision metrology. Since it is typically small, many efforts have been devoted to its enhancement. However, the upper limit of optical spin splitting remains uninvestigated. Here, we investigate systematically the in-plane spin splitting of a Gaussian beam reflected from a glass-air interface and find that the spin splitting can be enhanced in three different incident angular ranges: around the Brewster angle, slightly smaller than and larger than the critical angle for total reflection. Within the first angular range, the reflected beam can undergo giant spin splitting but suffers from low energy reflectivity. In the second range, however, a large spin splitting and high energy reflectivity can be achieved simultaneously. The spin splitting becomes asymmetrical within the last angular range, and the displacement of one spin component can be up to half of incident beam waist w 0/2. Of all the incident angles, the spin splitting reaches its maximum at Brewster angle. This maximum splitting increases with the refractive index of the “glass” prism, eventually approaching an upper limit of w 0. These findings provide a deeper insight into the optical spin splitting phenomena and thereby facilitate the development of spin-based applications.

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Section: Introductionmentioning

confidence: 99%

The upper limit of the in-plane spin splitting of Gaussian beam reflected from a glass-air interface

Guan

et al. 2017

Sci Rep

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“…The longitudinal spatial shift under conditions of partial reflection was investigated experimentally for the Brewster angle of incidence [29]. It turned out that the longitudinal shift is exceptionally sensitive to a change in the azimuth of linear polarization in the vicinity of 0    .…”

Section: Spatial and Angular Shifts Incident To Refraction And Reflecmentioning

confidence: 99%

Coherent Light at the Interface Between Two Media

Кундикова

2016

Russ Phys J

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Reflection and refraction of coherent polarized radiation at the interface between two media are considered. It is shown that deviations from the well-known laws of geometrical optics are possible under certain conditions. The causes of such a deviation are considered.Keywords: Goos-Hänchen shift, optical Magnus effect, spin and orbital angular momenta, spin-orbit interaction of a photon, optical Hall effect.

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“…However, most of these techniques just deal with SHEL around the Brewster angle for horizontally or vertically polarized incident beam. Most recently, Qiu et al reported a large in-plane spin-dependent splitting at Brewster angle and demonstrated that the spin-dependent splitting direction can be switched by slightly adjusting the polarization orientation of the incident beam [19].…”

Section: Introductionmentioning

confidence: 99%

“…In considerable amount of measurements, the pre-and postselection processes are implemented by using two nearly crossed Glan-Taylor polarizers (GTPs) [5][6][7][9][10][11][12], of which we can choose the optimal pre-and post-selection to acquire the maximum weak value [17]. Nevertheless, Kong et al present an effective solution consisting of two polarizers with an angle of 45 • to measure the SHEL around the Brewster angle [18,19]. In the past few years, it has aroused considerable amount of investigations to manipulate the magnitude and direction of spin splitting [19][20][21][22][23][24] Abstract As Brewster law goes, the polarization selectivity when a light beam reflected at Brewster angle is feasible.…”

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Optimized weak measurement for spatial spin-dependent shifts at Brewster angle

Zhang

Liu

et al. 2016

Appl. Phys. B

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presented as the Goos-Hänchen (GH) shift [1]. The out-ofplane one is also well known as Imbert-Fedorov (IF) shift [2], which performs as the out-of-plane spin-dependent shift (SDS) of the barycenter of circularly polarized beam. Based on the IF shift, an intriguing dynamic behavior, the separation of right-handed (RH) and left-handed (LH) circularly polarized components of the incident beam, can be observed for a linearly polarized beam with bounded width [3,4]. This phenomenon can be considered as a photonic analog of the electric spin Hall effect occurring in solidstate systems, generally named spin Hall effect of light (SHEL) [5,6]. Furthermore, these two kinds of shifts can be presented in spatial and angular domains (see, e.g., [7] and the references therein for a review).More generally, the magnitude of the SDSs is only on the nanoscale and is hard to achieve accurate measurement. In 2008, Hosten et al. firstly introduced the weak measurement technique to precisely characterize the tiny out-of-plane SDS associated with SHEL [5,8]. This unique method allows significant magnification of beam shifts and paves a useful way to observe this SDS and GH shift in optical reflection [9-15] and identify the polarization chirality of light beam [16]. In principle, this weak measurement technique employs two appropriate pre-and post-selection states to achieve an enhancement shift. In considerable amount of measurements, the pre-and postselection processes are implemented by using two nearly crossed Glan-Taylor polarizers (GTPs) [5][6][7][9][10][11][12], of which we can choose the optimal pre-and post-selection to acquire the maximum weak value [17]. Nevertheless, Kong et al. present an effective solution consisting of two polarizers with an angle of 45 • to measure the SHEL around the Brewster angle [18,19]. In the past few years, it has aroused considerable amount of investigations to manipulate the magnitude and direction of spin splitting [19][20][21][22][23][24] Abstract As Brewster law goes, the polarization selectivity when a light beam reflected at Brewster angle is feasible. We find that this polarization selectivity is still effective incorporated with weak measurement. So we realize an optimized weak measurement technique without preselection polarizer. This scheme is exploited to observe the spatial spin-dependent shifts when a linearly polarized beam is reflected at Brewster angle. The theoretical and experimental results show that by changing the polarization orientation of incident beam, the in-plane spin-dependent shift direction can be reversed, while the out-of-plane spindependent shift direction keeps unchanged. Our results may enrich the application of weak measurement.

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Incident-polarization-sensitive and large in-plane-photonic-spin-splitting at the Brewster angle

Cited by 67 publications

References 22 publications

The upper limit of the in-plane spin splitting of Gaussian beam reflected from a glass-air interface

The upper limit of the in-plane spin splitting of Gaussian beam reflected from a glass-air interface

Coherent Light at the Interface Between Two Media

Optimized weak measurement for spatial spin-dependent shifts at Brewster angle

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