Reconfigurable Optically Induced Quasicrystallographic Three‐Dimensional Complex Nonlinear Photonic Lattice Structures

Abstract

Complex reconfigurable 3D photonic quasicrystals (PQCs) are fabricated in nonlinear photorefractive strontium barium niobate by an optical phase engineering‐based single‐step optical induction approach (see image). The approach demonstrates the embedded potential to use these structures as a reconfigurable platform for the investigation of advanced nonlinear light‐matter interaction, or as templates fabricated in various photosensitive materials for photonic bandgap structures.

Complex 3D Vortex Lattice Formation by Phase-Engineered Multiple Beam Interference

“…Considering the multiples of n = 3, the overall irradiance profile of the interference pattern of q + 1 linearly polarized plane waves is given by [13,25],…”

“…We find these phenomenal structures and their dynamics also in other physical systems like Bose-Einstein condensates, super fluidics, and so forth [19]. Among various fabrication methods for 2D and 3D photonic lattice structures, the fabrication approach involving a designed combination of light fields dynamically sculpting the structures to control the light is proven to be versatile in terms of scalability, tunability, and large area fabrication flexibility in a single step [20][21][22][23][24][25]. It has also been shown that optical field patterns belonging to all 14 Bravais crystallographic lattice 3D structures can be formed by designed plane wave interference [26,27].…”

Introduction to the Topical Issue on Laser Dynamics and Nonlinear Photonics

“…In contrast to light propagation in prefabricated permanent structures, an increased flexibility can be achieved when light itself induces its own periodic structure through the nonlinear response of the material. In the talk, Cornelia Denz (Münster, Germany) presented in Uruguay an overview of several approaches to realize complex one-two-and three-dimensional photonic lattices, as well as complex lattice geometries such as superlattices or 3D crystallographic and quasi-crystallographic lattices [6]. Due to the ability of the photorefractive effect to create refractive index changes at very low laser powers and to realize adaptive and reconfigurable structures, multidimensional, nonlinear, optically induced lattices can be achieved.…”

Optical generation of a spatially variant two-dimensional lattice structure by using a phase only spatial light modulator

“…lattice orientation, lattice spacing and fill-factor 2-4 etc. A single step, low cost, large area fabrication of periodic (or quasi periodic) photonic crystal structures is possible by the method of interference lithography 5,6 and few recent advances with phase only spatial light modulator (SLM) assisted interference lithography has enabled the fabrication of some unconventional photonic crystal structures. These structures include embedding of defect sites [7][8][9] , creation of line defects 10 , dual lattice structures 11 and gradient structures 12,13 .…”