1. Pure single line oscillation of HF lasers in fine atmospheric window

   • Yuanhu Wang
   • Liucheng Li
   • Jing Cao

   OriginalPaper 03 June 2021 Article: 94

   

2. Correction to: 3.5 ps burst mode pulses based on all‑normal dispersion harmonic mode‑locked

   • Haolin Yang
   • Yue Chen
   • Nigel Copner

   Correction 02 June 2021 Article: 93

3. Quantitative prediction of a functional ingredient in apple using Raman spectroscopy and multivariate calibration analysis

   • Shinsaku Tsuyama
   • Akinori Taketani
   • Yasutaka Hanada

   OriginalPaper 30 May 2021 Article: 92

   

4. A spiral-polished fiber sensor for strain and temperature measurement

   • Yiwei Ma
   • Chunbo Su
   • Libo Yuan

   OriginalPaper 26 May 2021 Article: 91

   

5. Optical feedback-induced dynamics and nonclassical photon statistics of semiconductor microcavity laser

   • Shailendra Kumar Singh

   OriginalPaper 25 May 2021 Article: 90

   

6. Negative resonant modes in a hyperbolic metamaterial slot cavity

   • Mehedi Hasan
   • Dihan Hasan
   • Muhammad Anisuzzaman Talukder

   OriginalPaper 25 May 2021 Article: 89

   

7. A brief overview of 8 m prototype facility of laser interferometer for Taiji pathfinder mission

   • Yu-Qiong Li
   • Gang Jin

   OriginalPaper 22 May 2021 Article: 88

   

8. Design of a bi-functional metamaterial with broadband electromagnetically induced transparency and transmission-type polarization conversion

   • Dong Yang
   • Zhaoyang Shen
   • Yingqing Xia

   OriginalPaper 19 May 2021 Article: 87

   

9. Detection of nitrogen dioxide with tunable multimode blue diode Lasers

   • Abdulaziz Aljalal
   • Sameh Altanany
   • Watheq Al-Basheer

   OriginalPaper 16 May 2021 Article: 86

   

10. Azimuthal eigenmodes at strongly non-degenerate parametric down-conversion

    • L. S. Dvernik
    • P. A. Prudkovskii

    OriginalPaper 16 May 2021 Article: 85

    

11. Equivalent electromagnetic parameters extraction method for graded honeycomb absorbing materials

    • Haiyan Chen
    • Rongbo Shen
    • Longjiang Deng

    OriginalPaper 13 May 2021 Article: 84

    

12. Passively Q-switched 8.5-ns Pr³⁺:YLF laser at 640 nm

    • Moritz Badtke
    • Hiroki Tanaka
    • Christian Kränkel

    OriginalPaper Open access 12 May 2021 Article: 83

    

13. Determination of calorific value in coal by LIBS coupled with acoustic normalization

    • Peng Lu
    • Zhuang Zhuo
    • Jingqi Lu

    OriginalPaper 11 May 2021 Article: 82

    

14. Optical properties and structure of acetylene flame soot

    • A. V. Drakon
    • A. V. Eremin
    • R. N. Kolotushkin

    OriginalPaper 07 May 2021 Article: 81