1. Bidirectional radiation high-gain antenna based on phase gradient metasurface

   • Lina Hua
   • Houyuan Cheng
   • Shangru Li

   OriginalPaper 28 August 2021 Article: 136

   

2. Simultaneous quantification of Au and Ag composition from Au–Ag bi-metallic LIBS spectra combined with shallow neural network model for multi-output regression

   • Lingamurthy Narlagiri
   • Venugopal Rao Soma

   OriginalPaper 26 August 2021 Article: 135

   

3. Improved spatial soliton theory on the example of photorefractive gallium arsenide

   • Marek Wichtowski
   • Andrzej Ziółkowski

   OriginalPaper Open access 26 August 2021 Article: 134

   

4. Optical beam splitter, Mach–Zehnder interferometer and the delayed choice issue

   • Dietrich von der Linde

   OriginalPaper Open access 24 August 2021 Article: 133

   

5. Multipass cell design with the random walk and gradient descent optimization algorithms

   • Rong Kong
   • Peng Liu
   • Xin Zhou

   Regular Paper 21 August 2021 Article: 132

   

6. Determination of gradient index based on laser beam deflection by stochastic particle swarm optimization

   • Linyang Wei
   • Guojun Li
   • Weijun Zhang

   OriginalPaper 20 August 2021 Article: 131

   

7. Compact and high reliable frequency-stabilized laser system at 589 nm based on the distributed-feedback laser diodes

   • Jianyong Ding
   • Guangli Yu
   • Wei Wei

   OriginalPaper 17 August 2021 Article: 130

   

8. High average power 200 fs mid-infrared KTP optical parametric oscillator tunable from 2.61 to 3.84 μm

   • Xianghao Meng
   • Zhaohua Wang
   • Zhiyi Wei

   OriginalPaper 12 August 2021 Article: 129

   

9. Spin dynamic response to a time dependent field

   • Giuseppe Bevilacqua
   • Valerio Biancalana
   • Antonio Vigilante

   OriginalPaper Open access 11 August 2021 Article: 128

   

10. Oven segmentation scheme for pulse shape and efficiency improvement in a picosecond second harmonic generation

    • Mozhgan Shahidani
    • Saeed Ghavami Sabouri
    • Alireza Khorsandi

    OriginalPaper 10 August 2021 Article: 127

    

11. Absolute concentration imaging using self-calibrating laser-induced fluorescence: application to atomic iron in a nanoparticle flame-synthesis reactor

    • M. R. Lalanne
    • A. Pilipodi-Best
    • I. Rahinov

    Regular Paper 05 August 2021 Article: 126

    

12. Remote multi-user control of the production of Bose–Einstein condensates

    • J. S. Laustsen
    • R. Heck
    • C. A. Weidner

    Regular Paper 04 August 2021 Article: 125