Splitting of Optical Spatial Modes via Stern-Gerlach Effect

被引:1
作者
Li, Jiaxin [1 ,2 ]
Wang, Zhaoyuan [1 ,2 ]
Hu, Yi [1 ,2 ]
Xu, Jingjun [1 ,2 ]
机构
[1] Nankai Univ, TEDA Appl Inst, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China
[2] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
optical splitting; Stern-Gerlach effect; synthesized magnetic fields; SPIN;
D O I
10.1002/lpor.202301055
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Stern-Gerlach (SG) effect, initially found for unveiling the existence of quantized electron spins, is now a general concept describing a state-dependent separation. It is widely explored in optics to achieve a function of optical splitting, but the current schemes always require a polarization- or wavelength-dependent process, thus showing limitations for broader applications. Here, spatial modes of an optical field are employed as another degree of freedom to demonstrate an SG effect. Two modes of a pair of coupled waveguides are found to be in analog to the electron spins. They are able to undergo a splitting upon a spatially-dependent waveguide coupling, which plays the role of a non-uniform magnetic field. In an experiment, such a splitting is realized in two coupled non-parallel slab waveguides, and its strength is adjusted at ease by varying the parameters of this proposed structure. This SG-related optical splitting may find applications in the field of optical sensing and signal processing. Stern-Gerlach effect is widely explored in optics to achieve a function of optical splitting, but polarization- or wavelength-dependent dynamics have always been involved in past works. Here, spatial modes of an optical field are employed as another degree of freedom to demonstrate a Stern-Gerlach effect. The resulting optical splitting, independent of polarization/wavelength, is solely induced by a spatially-dependent optical coupling. image
引用
收藏
页数:6
相关论文
共 26 条
[1]   Stern-Gerlach experiment with light: separating photons by spin with the method of A. Fresnel [J].
Arteaga, Oriol ;
Garcia-Caurel, Enric ;
Ossikovski, Razvigor .
OPTICS EXPRESS, 2019, 27 (04) :4758-4768
[2]   Spin- and density-resolved microscopy of antiferromagnetic correlations in Fermi-Hubbard chains [J].
Boll, Martin ;
Hilker, Timon A. ;
Salomon, Guillaume ;
Omran, Ahmed ;
Nespolo, Jacopo ;
Pollet, Lode ;
Bloch, Immanuel ;
Gross, Christian .
SCIENCE, 2016, 353 (6305) :1257-1260
[3]   Discriminatory optical force for chiral molecules [J].
Cameron, Robert P. ;
Barnett, Stephen M. ;
Yao, Alison M. .
NEW JOURNAL OF PHYSICS, 2014, 16
[4]   THEORY OF ATOMIC MOTION IN A RESONANT ELECTROMAGNETIC-WAVE [J].
COOK, RJ .
PHYSICAL REVIEW LETTERS, 1978, 41 (26) :1788-1791
[5]   OPTICAL STERN-GERLACH EFFECT [J].
COOK, RJ .
PHYSICAL REVIEW A, 1987, 35 (09) :3844-3848
[6]   Magneto-optical Stern-Gerlach forces and nonreciprocal torques on small particles [J].
Edelstein, S. ;
Abraham-Ekeroth, R. M. ;
Serena, P. A. ;
Saenz, J. J. ;
Garcia-Martin, A. ;
Marques, M. I. .
PHYSICAL REVIEW RESEARCH, 2019, 1 (01)
[7]   Optical Trapping Separation of Chiral Nanoparticles by Subwavelength Slot Waveguides [J].
Fang, Liang ;
Wang, Jian .
PHYSICAL REVIEW LETTERS, 2021, 127 (23)
[8]   The experimental evidence of direction quantistion in the magnetic field [J].
Gerlach, W ;
Stern, O .
ZEITSCHRIFT FUR PHYSIK, 1922, 9 :349-352
[9]   Theory of spinor Fermi and Bose gases in tight atom waveguides [J].
Girardeau, MD ;
Olshanii, M .
PHYSICAL REVIEW A, 2004, 70 (02) :023608-1
[10]   Magneto-optical Stern-Gerlach effect in an atomic ensemble [J].
Guo, Yu ;
Zhou, Lan ;
Kuang, Le-Man ;
Sun, C. P. .
PHYSICAL REVIEW A, 2008, 78 (01)