Sponsor(s): Chinese Optical Society；Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences
12 issues per year
Current Issue: Issue 02, 2020
Acta Optica Sinica(ISSN：0253-2239), founded in 1981, is the optical academic publication issued at home and abroad, which covers the latest research in optical science. The main scopes of this journal include atmospheric and ocean optics, detectors, fiber optics and optical communications, Fourier optics and optical signal processing, holography, imaging systems, measurement and metrology, lasers and laser optics, machine vision, materials, nonlinear optics, optical design and fabrication, optical devices, physical optics, quantum optics, remote sensing and sensors, spectroscopy, X-ray optics, etc. This journal offers service for optical science and technology researcher to carry out academic exchange and discussion. Acta Optica Sinica has been selected into Science Abstracts(SA), Chemical Abstract (CA), Abstract Journal(AJ), Information Service in Physics, Electro-Technology, Computer and Control (INSPEC), Engineering Index (EI), etc, which is one of 100 outstanding academic journals of China.
Gan Fuxi Wang Zhijiang Xu Zhizhan Wang Runwen
Shao Jianda Xu Jinjun Hu Lili Han Shensheng
Executive Editorial Board
Wang Yongtian Liu Shu
Femtosecond Quasi-Bright Soliton Solution and Its Properties Under Influence of Higher-Order Effects in Metamaterials
Acta Optica Sinica,2020,Vol 40,No. 02
Based on the higher-order nonlinear Schrödinger equation describing ultrashort pulse transmission in metamaterials, this study presents an exact femtosecond quasi-bright soliton solution and determines its existence conditions by using the traveling wave method. When the group speed dispersion, third-order dispersion, cubic-quintic nonlinearities, self-steepening, and second-order nonlinear dispersion effects are properly balanced, the femtosecond quasi-soliton can exist in nonlinear metamaterials. Without the third-order dispersion and second-order nonlinear dispersion, the soliton in metamaterials can not occur. Based on the Drude model, the existence index regions of the femtosecond quasi-bright soliton are discussed in different nonlinear metamaterials. The results show that femtosecond quasi-soliton can exist in the negative index region of self-defocusing nonlinear metamaterials, and in the positive index region of self-focusing nonlinear metamaterials. Moreover, the intensities and widths of the solitons differ in different regions of the metamaterials, implying that the properties of the formed solitons can be adjusted by choosing different nonlinear metamaterials and different frequencies of the incident wave, making them in the corresponding existence areas.
Detection of Temporal and Spatial Distributions of Atmospheric Nitric Acid Based on Ground-Based High-Resolution Solar Absorption Spectra
Acta Optica Sinica,2020,Vol 40,No. 02
In this study, the high-resolution Fourier transform infrared spectroscopy (FTIR) is used to detect the concentrations of nitric acid (HNO 3) in the atmosphere above the Hefei site. The vertical profiles and total columns of HNO 3 are retrieved from the mid-infrared solar absorption spectra using the optimal estimation method. The vertical profiles and time series of the total columns of atmospheric HNO 3 are obtained over the entire year of 2017. Further, the characteristics of the seasonal variation of HNO 3, sensitivity altitude of concentration detection, averaging kernels of retrieved profiles, and degrees of freedom are analyzed. The vertical profiles of atmospheric HNO 3 in different seasons denote that the HNO 3 concentrations are higher at an altitude of 20–30 km in the stratosphere and that they are lower in the troposphere. Furthermore, the total columns of HNO 3 exhibit obvious seasonal variations, with a maximum in spring and minimum in winter. The amplitude of the seasonal variations is 9.82 × 10 15 molecule/cm 2. The data products obtained from the Aura MLS satellite are selected for performing a comparison with the ground-based data to validate the measurements of the ground-based FTIR using independent data. The comparison results denote that the ground-based remote sensing and satellite observations display a consistent seasonal HNO 3 variability. The ground-based data exhibit a good agreement with the satellite data with a high correlation coefficient of 0.83 even though the partial columns of the satellite data are lower than the corresponding ground-based total columns. The observation results indicate the reliability and accuracy of the ground-based FTIR for observing the temporal and spatial distributions of the atmospheric HNO 3.