Special Issue on Lithium Niobate Based Photonic Devices
Broadband and lossless lithium niobate valley photonic crystal waveguide [Invited]
Chinese Optics Letters
  • Jun. 16, 2021
  • Vol.19, Issue 6 (2021)
Special Issue on Lithium Niobate Based Photonic Devices
Surface lattice resonances in dielectric metasurfaces for enhanced light-matter interaction [Invited]
Chinese Optics Letters
  • Jun. 16, 2021
  • Vol.19, Issue 6 (2021)
Infrared and Terahertz Photonics
Liquid crystal integrated metamaterial for multi-band terahertz linear polarization conversion
Shitong Xu, Fei Fan, Hongzhong Cao, Yinghua Wang, and Shengjiang Chang
Chinese Optics Letters
  • Jun. 15, 2021
  • Vol.19, Issue 9 (2021)
Lasers, Optical Amplifiers, and Laser Optics
Watt-level continuous-wave intracavity frequency-doubled Pr:YLF-LBO laser at 320 nm
Yunshan Zhang, Jingyu Zou, Wanxin Zheng, Kai Feng, Bin Xu, and Zhenfang Yu
Chinese Optics Letters
  • Jun. 15, 2021
  • Vol.19, Issue 9 (2021)
Lasers, Optical Amplifiers, and Laser Optics
GSA and ESA dual-wavelength pumped 2.3 μm Tm:YLF laser on the 3H4→3H5 transition
Fei Wang, Haitao Huang, Haiwei Chen, Yushuo Bao, Zihan Li, and Deyuan Shen
Chinese Optics Letters
  • Jun. 15, 2021
  • Vol.19, Issue 9 (2021)
On the Cover
Topology is an important branch of mathematics formed in the 19th century. It studies the invariant properties of geometric figures or space under continuous deformation. The idea of topological physics originated from the exciting discovery of the integer quantum Hall effect (IQHE) in condensed-state physics. Klitzing found that the two-dimensional (2D) electron gas in a strong perpendicular magnetic field has a quantized Hall conductance. The quantization originates from the non-trivial topology of the energy band structure, which is characterized by the Chern number according to the theoretical work of Thouless, Kohmoto, Nightingale, and den Nijs (TKNN). Haldane and Raghu creatively introduced the concept of topology to photonic crystals for the first time, as they proposed a photonics analogue of the quantum Hall effect in photonic crystals. Edge states appear at the domain wall between materials that have different Chern numbers and go through the topological bandgap in momentum space according to the bulk-edge correspondence.
Chinese Optics Letters
  • Jun. 04, 2021
  • Vol.19, Issue 5 (2021)
Editors' Picks
Plasmonic color printing has several advantages over traditional color dyes printing: sub-wavelength resolution, the production of bright and non-fading colors. In general, the reflected color from metallic structures is determined by the plasmonic resonance, which is highly sensitive to the structure geometry and optical constants. Tuning the geometries and size of the plasmonic nanostructures is a means to tailoring absorption spectra in the visible frequency range.
Chinese Optics Letters
  • Jun. 03, 2021
  • Vol.19, Issue 5 (2021)
Editors' Picks
Textile dyeing plays an indispensable role in our daily life, enriching peoples choices of the textile and satisfying our desire for aesthetics. In general, traditional textile dyeing is mainly based on chemical pigments. However, the old-fashioned technique may lead to environmental pollution and health concerns. Fortunately, structural colors found in the natural world inspire people to utilize nanostructures to achieve coloration meanwhile avoid the abovementioned problems. Structural colors originate from the interaction of light with photonic structures whose feature sizes are comparable to visible wavelengths. These interactions include interference, diffraction, scattering, or their combination.
Chinese Optics Letters
  • May. 27, 2021
  • Vol.19, Issue 5 (2021)
Editors' Picks
Emerging from the strong-field driven solids, high-harmonic generation (HHG) has become a frontier of ultrafast electron dynamics and attosecond physics in condense matter. High-harmonic spectroscopy provides an opportunity to steer ultrafast electron dynamics in subcycle timescale and a promising route to produce coherent light pulses in extreme ultraviolet region with enhanced yield. Because of the complexity of solid materials, HHG shows a variety of new phenomena and corresponding mechanisms. Especially, even-order harmonics are generated by breaking the inversion symmetry of a system. In spite of the widely adopted theoretical models in length gauge, velocity gauge preserves the translational symmetry of the crystal structure and decouples electron dynamics of different crystal momentum, which can be advantageous in interpreting the even-order harmonics generation.
Chinese Optics Letters
  • May. 26, 2021
  • Vol.19, Issue 4 (2021)