title: Generation of crystal-structure transverse patterns via a self-frequency-doubling laser.
abstract: Two-dimensional (2D) visible crystal-structure patterns analogous to the quantum harmonic oscillator (QHO) have been experimentally observed in the near- and far-fields of a self-frequency-doubling (SFD) microchip laser. Different with the fundamental modes, the localization of the SFD light is changed with the propagation. Calculation based on Hermite-Gaussian (HG) functions and second harmonic generation theory reproduces well the patterns both in the near- and far-field which correspond to the intensity distribution in coordinate and momentum spaces, respectively. Considering the analogy of wave functions of the transverse HG mode and 2D harmonic oscillator, we propose that the simple monolithic SFD lasers can be used for developing of new materials and devices and testing 2D quantum mechanical theories.
authors: State Key Laboratory of Crystal Materials, Shandong University, Jinan, China.
authors: Haohai
authors: H
authors: Yu
authors: Huaijin
authors: H
authors: Zhang
authors: Yicheng
authors: Y
authors: Wang
authors: Zhengping
authors: Z
authors: Wang
authors: Jiyang
authors: J
authors: Wang
authors: V
authors: V
authors: Petrov
mesh_terms: D000465:Algorithms; D003460:Crystallization / Q000379:methods; D005682:Gadolinium / Q000737:chemistry; D007834:Lasers; D009354:Neodymium / Q000737:chemistry; D055096:Optical Devices; D055095:Optics and Photonics / Q000295:instrumentation / Q000379:methods; D011789:Quantum Theory; D014159:Transducers
chemical_list: D009354:Neodymium; D005682:Gadolinium