Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2099541
Title: Parametric downconversion via cascaded optical nonlinearities in an aperiodically poled MgO:LiNb O3 superlattice
Authors: Guo, H.C. 
Qin, Y.Q. 
Tang, S.H. 
Issue Date: 17-Oct-2005
Citation: Guo, H.C., Qin, Y.Q., Tang, S.H. (2005-10-17). Parametric downconversion via cascaded optical nonlinearities in an aperiodically poled MgO:LiNb O3 superlattice. Applied Physics Letters 87 (16) : 1-3. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2099541
Abstract: Quasi-phase-matched parametric downconversion via cascaded optical nonlinearities in an aperiodically poled MgO:LiNb O3 superlattice was studied in theory and experiment. Due to the cascading effect and the abundant reciprocal structure in an aperiodic optical superlattice, multiple-wavelength parametric downconversion in a wide spectrum range can be obtained. Enhancement of the conversion efficiency and output stability through coupling of two nonlinear processes is demonstrated. The result also reveals that the cascaded parametric downconversion process can be used to efficiently downconvert the fundamental wavelength to a longer wavelength of the infrared region. The process can be additionally served as an efficient mechanism to enhance THz wave propagation in a nonlinear optical medium. © 2005 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/97488
ISSN: 00036951
DOI: 10.1063/1.2099541
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