Evanescently coupled interface states in the gap between two Bragg reflectors

Brand, S; Abram, RA; Kaliteevski, MA

Abstract

Interface states are known to exist at the surface of an appropriately structured Bragg reflector. If such reflectors are present on the surfaces of two prisms separated by a narrow gap, the evanescently coupled interface states can interact to produce a pair of very narrow transmission lines, the separation of which can be adjusted by varying the size of the gap between the two prisms. Thus, although only a single cavity is involved, the spectral properties of the system are similar to those of a dual-cavity photonic microstructure. In addition to other potential applications, we propose that such a structure could form the basis of an adjustable beat-frequency emitter in the terahertz regime.

Citation

Brand, S., Abram, R., & Kaliteevski, M. (2010). Evanescently coupled interface states in the gap between two Bragg reflectors. Optics Letters, 35(12), 2085-2087. https://doi.org/10.1364/ol.35.002085

• Journal Article Type: Article
• Publication Date: Jun 1, 2010
• Deposit Date: Sep 20, 2010
• Publicly Available Date: Nov 11, 2010
• Journal: Optics Letters
• Print ISSN: 0146-9592
• Electronic ISSN: 1539-4794
• Publisher: Optica
• Peer Reviewed: Peer Reviewed
• Volume: 35
• Issue: 12
• Pages: 2085-2087
• DOI: https://doi.org/10.1364/ol.35.002085
• Keywords: Dimensional photonic crystals, Terahertz generation, Laser.
• Public URL: https://durham-repository.worktribe.com/output/1539756