All-fiber coherent beam combiners based on the self-imaging effect can achieve a near-perfect single laser beam,which can provide a promising way to overcome the power limitation of a single-fiber laser.One of the key...
Imaging through scattering medium is challenging but important for different applications.Most advances rely on computational image reconstruction from scattering signals.In these conventional investigations,speckles ...
National Key Research and Development Program of China (2017YFB1104401);National Natural Science Foundation of China (61905226)。
The self-imaging effect in a square core fiber has been investigated, and an integrated all-fiber combiner has been proposed based on a large mode area double clad fiber, which can be employed to construct high power ...
supported by the National Natural Science Foundation of China(Nos.11674117 and 11974124)。
We investigate the Airy–Talbot effect of an Airy pulse train in time-dependent linear potentials.The parabolic trajectory of self-imaging depends on both the dispersion sign and the linear potential gradient.By impos...
The authors acknowledge the financial support from the National Key R&D Program of China(2017YFA0303701,2016YFA0202103);National Natural Science Foundation of China(91850204,11674167).Tao Li acknowledges support from Dengfeng Project B of Nanjing University.The authors have no conflicts of interest to disclose.
Self-imaging is an important function for signal transport,distribution,and processing in integrated optics,which is usually implemented by multimode interference or diffractive imaging process.However,these processes...
supported by the National Key R&D Program of China(No.2017YFA0206001);the National Natural Science Foundation of China(Nos.11505275,51705369,11275255,11475251,and 11875314);the Shanghai Science and Technology Commission Research Projects(No.17JC1400802)
Achromatic Talbot lithography(ATL)with high resolution has been demonstrated to be an excellent technique for large area periodic nano-fabrication.In this work,the uniformity of pattern distribution in ATL was studied...
Project supported by the National Natural Science Foundation of China(Grant Nos.61101175,61571305,and 61227802)
A fast and simple method to extract phase-contrast images from interferograms is proposed, and its effectiveness is demonstrated through simulation and experiment. For x-ray differential phase contrast imaging, a stro...
supported by the National Natural Science Foundation of China(No.61178052);the Ph.D. Programs Foundation of the Ministry of Education of China(No.20130009110008)
A hexagonal array grating based on selective etching of a 2D ferroelectric domain inversion in a periodically poled Mg O-doped Li Nb O3 crystal is fabricated. The effects to the diffractive self-imaging as a function ...
Innovation Foundation for Excellent Graduates in National University of Defense Technology under grant B120704.
Coherent beam combination(CBC)of fiber lasers based on self-imaging properties of a strongly confined tapered waveguide(SCTW)is studied systematically.Analytical formulas are derived for the positions,amplitudes,and p...
supported by the National Natural Science Foundation of China(No.61007027);the Fundamental Research Funds for Central Universities,China
A fundamental 1× 2 beam splitter based on the self-imaging phenomena in multi-mode one-dimensional (1D) photonic crystal (PC) waveguides is presented, and its transmission characteristics are investigated using t...