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Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

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Surface bound states in the continuum.

Mario I Molina¹, Andrey E Miroshnichenko, Yuri S Kivshar

¹Departamento de Física, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.

Physical Review Letters

|March 10, 2012

Summary

This summary is machine-generated.

We introduce novel surface bound states in the continuum (SSBICs) and an efficient method to create them. These stable surface modes can be tuned within the spectral band using weak nonlinearity.

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Area of Science:

Physics
Condensed Matter Physics
Photonics

Background:

Bound states in the continuum (BICs) are unique wave phenomena.
Surface modes offer localized functionalities.
Integrating BICs with surface phenomena presents challenges.

Purpose of the Study:

To introduce and demonstrate surface bound states in the continuum (SSBICs).
To propose an efficient method for generating SSBICs.
To investigate the stability and tunability of SSBICs.

Main Methods:

Theoretical formulation of SSBICs in discrete lattices.
Design of a local bounded potential to support SSBICs.
Analysis of structural stability and eigenvalue tuning via nonlinearity.

Main Results:

Successful introduction of SSBICs, which are surface modes embedded in the linear spectral band.
Development of an efficient method for creating SSBICs.
Demonstration of structural stability and continuous tunability of SSBICs' eigenvalues by weak nonlinearity.

Conclusions:

SSBICs represent a novel class of localized states.
The proposed method provides practical access to SSBICs.
Tunability via nonlinearity opens avenues for advanced optical devices.