Periodically poled second-order nonlinear materials with submicrometer periods are
important for the development of quasi-phase matched backward-wave nonlinear optical …

The creation of the periodical domain patterns with a submicron period in lithium niobate on
insulator (LNOI) wafers is a key problem for nonlinear-optical applications, including second …

We demonstrate first-order quasi-phase-matched backward second-harmonic generation
(BSHG) with an efficiency of 18.7%. This represents an increase by two orders of magnitude …

Spatial engineering of the nonlinear susceptibility χ^(2) in resonant metasurfaces offers a
new degree of freedom in the design of the far-field response of second-harmonic …

Quasi-phase-matching for efficient backward second-harmonic generation requires sub-μ m
poling periods, a nontrivial fabrication feat. For the first time, we report integrated first-order …

We study theoretically forward and backward second-harmonic generation in a two-
dimensional photonic crystal structure made of lithium niobate. The aim of this article is …

We propose and design a high-efficiency forward and backward second harmonic
generation (SHG) in nonlinear polymer filled silicon slot waveguide known as silicon …

We report on backward second-harmonic generation using ps laser pulses in congruent
lithium niobate with 3.2 µm periodic poling. Three resonant peaks were measured between …

Conference title, upper and lower case, bolded, 18 point type, centered Page 1 Highly-Efficient
First-Order Backward Second-Harmonic Generation in Periodically Poled Rb-Doped KTP with a …

Domain engineering technology in lithium tantalate is a well studied approach for nonlinear
optical applications. However, for several cases of interest, the realization of short period …