A new integrated optical three-dimensional (3D) electric field (E-field) sensing system is shown in this paper. In the system, the method of tuning laser’s wavelength is used for controlling the working point of the integrated optical E-field sensor to ke
The resolution of a conventional imaging system based on first-order field correlation can be directly obtained from the optical transfer function. However, it is challenging to determine the resolution of an imaging system through random media, including
A novel morphological filtering algorithm is proposed for suppressing speckle noise in images. The algorithm employs directional morphological close-open and open-close operations, then computing the membership of the filtered versions’ every pixel accord
Temporal properties of random lasing under ultrashort pulse excitation are investigated in a two-dimensional disordered medium. The pumping light is described individually and coupled into the rate equations. The Maxwell equations and rate equations are n
This feature issue is the second Joint Applied Optics (AO) and Chinese Optics Letters (COL) Feature Issue on digital holography and three-dimensional (3D) imaging. The first installment of such a joint feature issue was in 2011. In the present feature iss
An infrared image detail enhancement method based on local adaptive gamma correction (LAGC) is proposed. The local adaptive gamma values are designed based on the Weber curve to enhance effectively the image details. Subsequently, the active grayscale ran