Modal Birefringence: Tunable Modal Birefringence in a Low‐Loss Van Der Waals Waveguide (Adv. Mater. 27/2019). Issue 27 (2nd July 2019)

• Record Type: Journal Article
• Authors: Hu, Debo; Chen, Ke; Chen, Xinzhong; Guo, Xiangdong; Liu, Mengkun; Dai, Qing
• Is Part Of: Advanced materials. Volume 31:Issue 27(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-07-02
• Subjects: near‐field imaging -- optical anisotropy -- phase retardation -- planar waveguides -- polarization management; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201970198
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : In article number1807788, Mengkun Liu, Qing Dai, and co‐workers use a metal‐coated atomic force microscope tip with a beam of near‐infrared light focused on its apex to launch and image the orthogonally polarized ordinary and extraordinary waveguide modes propagating in MoS2 . In a MoS2 crystal with a suitable thickness, the ordinary and extraordinary modes can be degenerate in momentum space and propagate with the same phase velocity in real space.