Abstract
In this paper, we report a new method, hyperfine aperiodic optical superlattice (H-AOS) optimized by sequential search algorithm (SS). The domain size of H-AOS remains longer than the minimum domain length dmin (~4.5 □m), which can be reliable poled and the resolution is equal to the photolithographic mask (~100nm). H-AOS method enhance the overall efficiency by ~9% and greatly reduce the computation time by a factor of ~15 simultaneously compare to NOS method in 3 PM peaks and 5 PM peaks design. We also demonstrate the (1) 40 PM peaks, (2) 1.15~2.4□m wide 4 PM peaks, (3) cubic shape PM peaks, (4) Super gaussian shape continuous PM curve, (5) continuous flat-top PM band, (6) sidelobe suppression for sinc2 PM power spectrum, to show the flexibility of our method. We also use program to show that the design by H-AOS is very closed to the global maximum.