LUNG-HAN PENGHsu, C.-C.C.-C.HsuShih, Y.-C.Y.-C.Shih2009-03-182018-07-062009-03-182018-07-06200300036951http://ntur.lib.ntu.edu.tw//handle/246246/146008https://www.scopus.com/inward/record.uri?eid=2-s2.0-0242666919&doi=10.1063%2f1.1622786&partnerID=40&md5=2e724faa223dded5b15926f4f5a69b6dThe characteristics of nonlinear photonic crystals (NPC) with an orthorhombic lattice structure were discussed. The far-field emission pattern of second-harmonic generation (SHG) was monitored to study the quasiphase-matching (QPM) mechanism of nonlinear wave interaction. Second-harmonic generation was resulted from the pumping of NPC by a neodymium laser beam. The significance of a series distribution of green SHG in a direction transverse to the fundamental beam was also explained.application/pdf272724 bytesapplication/pdfen-USCrystal symmetry; Geometrical optics; Lithium niobate; Neodymium lasers; Nonlinear systems; Photons; Second harmonic generation; Phase-matching; Photonic crystals; Crystal latticesjournal article10.1063/1.16227862-s2.0-0242666919http://ntur.lib.ntu.edu.tw/bitstream/246246/146008/1/11.pdf