An algorithm to sculpt photon dispersion in a subwavelength nanostructure

作者：Zhang Feng^*; Holliday Kito S; Lammert Paul E; Crespi Vincent H

来源：Applied Physics Letters, 2009, 94(4): 041115.

DOI：10.1063/1.3072594

• eigenvalues and eigenfunctions
• nanostructured materials
• optimisation
• permittivity
• photonic crystals

We introduce a method of gradient-based optimization that continuously deforms a periodic dielectric distribution to generate photonic structures that possess any desired figure of merit expressible in terms of the electromagnetic eigenmodes. As an example, we generate forbidden regions between specified bands at extremely low dielectric contrast.

• 出版日期2009-1-26