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Three-year-old journal ranked among top optics journals in first year of recognition.

The image on the cover for Chinese Optics Letters Volume 20, Issue 5, reports reflective photon nanosieves that consist of metallic meta-mirrors sitting on a transparent quartz substrate. Upon illumination, these meta-mirrors offer the reflectance of &sim;50%, which is higher than the transmission of visible light through diameter-identical nanoholes.The image is based on original research by Samia Osman Hamid Mohammed et al. presented in their paper "Efficiency-enhanced reflective nanosieve holograms", Chinese Optics Letters 20 (5), 053602. (2022)

The image on the cover for Photonics Research Volume 10, Issue 4, reports the demonstration of an N-polar InGaN/GaN nanowire sub-microscale LED emitting in the red spectrum that can overcome the efficiency cliff of conventional red-emitting micro-LEDs. The image is based on original research by A. Pandey et al. presented in their paper "N-polar InGaN/GaN nanowires: overcoming the efficiency cliff of red-emitting micro-LEDs", Photonics Research 10 (4), 04001107 (2022).

The image on the cover for Advanced Photonics Volume 4 Issue 2 illustrates a schematic of a Mueller matrix measurement system and a conceptional Mueller matrix of the sample (4x4 matrix), as well as the related vectorial properties of the light beams.The image is based on original research presented in the article by Chao He, Jintao Chang, Patrick S. Salter, Yuanxing Shen, Ben Dai, Pengcheng Li, Yihan Jin, Samlan Chandran Thodika, Mengmeng Li, Tariq Aziz, Jingyu Wang, Jacopo Antonello, Yang Dong, Ji Qi, Jianyu Lin, Daniel S. Elson, Min Zhang, Honghui He, Hui Ma, and Martin J. Booth, “ Revealing complex optical phenomena through vectorial metrics,” Adv. Photon. 4(2), 026001 (2022), doi 10.1117/1.AP.4.2.026001.

The image on the cover for Chinese Optics Letters Volume 20, Issue 4, indicates that an InAs/GaAs quantum dot photonic crystal bandedge laser, which is directly grown on an on-axis Si (001) substrate, which provides a feasible route towards a low-cost and large-scale integration method for light sources on the Si platform was achieved under the pumping condition of a continuous-wave 632.8 nm He&ndash;Ne gas laser at room temperature.The image is based on original research by Yaoran Huang et al. presented in their paper "Highly integrated photonic crystal bandedge lasers monolithically grown on Si substrates", Chinese Optics Letters 20 (4), 041401 (2022).

APN Highlights
Thin-film lithium niobate edge coupler enables on-chip second harmonic generation
• Aug. 18, 2022
• Vol. 1, Issue 1 (2022)
Editors' Picks
The large-scale integration of electronic devices in silicon circuits has driven the technological revolution of the twentieth century. Over the last two decades, the field of photonics draws great efforts towards similar integration. The huge demand for bandwidth mandates broadband optical communication in ever increasing volumes at the rack, board, and chip levels.
Photonics Research
• Aug. 18, 2022
• Vol. 10, Issue 7 (2022)
AP Highlights
A newly developed polarizer-embedded metalens enables a compact, portable microscope system that efficiently obtains wide-field, noise-free, high-resolution images
• Aug. 17, 2022
• Vol. 4, Issue 4 (2022)
AP Highlights
Liquid film can function as optical memory, enabling new architectural horizons for nanoscale neuromorphic computing
• Aug. 17, 2022
• Vol. 4, Issue 4 (2022)
AP Highlights
A broadband near-field chiral source in the microwave band enables comparison of different edge states to advance applications in integrated photonics and wireless devices
• Aug. 17, 2022
• Vol. 4, Issue 4 (2022)
Fabrication, testing, and assembly of high-finesse optical fiber microcavity for molecule cavity QED experiment

The ultracold molecule is a promising candidate for versatile quantum tasks due to its long-range interaction and rich internal rovibrational states. With

The ultracold molecule is a promising candidate for versatile quantum tasks due to its long-range interaction and rich internal rovibrational states. With the help of the cavity quantum electrodynamics (QED) effects, an optical cavity can be employed to increase the efficiency of the formation of the photoassociated molecules and offers a non-demolition detection of the internal states of molecules. Here, we demonstrate the production of the high-finesse optical fiber microcavity for the $Rb2$ molecule cavity QED experiment, which includes the fabrication of fiber-based cavity mirrors, testing, and the assembly of ultra-high vacuum-compatible optical fiber microcavity. The optical fiber microcavity offers high cooperativity between cavity mode and ultracold molecule and paves the way for the study of molecule cavity QED experimental research.show less

• Aug.20，2022
• Chinese Optics Letters,Vol. 20, Issue 12
• 122702 (2022)
Phase modulation polarization encoding module applied to one-to-many QKD network based on wavelength division multiplexing

The quantum key distribution (QKD) network is a promising solution for secure communications. In this paper, we proposed a polarization-independent phase-

The quantum key distribution (QKD) network is a promising solution for secure communications. In this paper, we proposed a polarization-independent phase-modulated polarization encoding module, and it can be combined with a dense wavelength division multiplexer (DWDM) to achieve multi-user QKD. We experimentally test the encoding module with a repetition rate of 62.5 MHz, and its average quantum bit error rate (QBER) is as low as 0.4%. Finally, we implement a principle verification test for simultaneous QKD for 1 to 2 users in 100 min, and the average QBER of two users under the transmission distance of 1 km and 5 km is kept below 0.8%. Due to the use of polarization encoding, the module can also realize scalable network architecture in free-space QKD systems in the future.show less

• Aug.20，2022
• Chinese Optics Letters,Vol. 20, Issue 12
• 122701 (2022)
Metasurface for oscillatory spin splitting along the optical path

Spin splitting of light originates from the interplay between the polarization and spatial degrees of freedom as a fundamental constituent of the emerging

Spin splitting of light originates from the interplay between the polarization and spatial degrees of freedom as a fundamental constituent of the emerging spin photonics, providing a prominent pathway for manipulating photon spin and developing exceptional photonic devices. However, previously relevant devices were mainly designed for routing monotonous spin splitting of light. Here, we realize an oscillatory spin splitting of light via metasurface with two channel Pancharatnam–Berry phases. For the incidence of a linearly polarized light, the concomitant phases arising from opposite spin states transition within pathways of the metasurface induce lateral spin splitting of light with alternately changed transport direction during beam guiding. We demonstrate the invariance of this phenomenon with an analogous gauge transformation. This work provides a new insight on steering the photon spin and is expected to explore a novel guiding mechanism of relativistic spinning particles, as well as applications of optical trapping and chirality sorting.show less

• Aug.20，2022
• Photonics Research,Vol. 10, Issue 9
• B7 (2022)
Silicon photonics for high-capacity data communications

In recent years, optical modulators, photodetectors, (de)multiplexers, and heterogeneously integrated lasers based on silicon optical platforms have been

In recent years, optical modulators, photodetectors, (de)multiplexers, and heterogeneously integrated lasers based on silicon optical platforms have been verified. The performance of some devices even surpasses the traditional III-V and photonic integrated circuit (PIC) platforms, laying the foundation for large-scale photonic integration. Silicon photonic technology can overcome the limitations of traditional transceiver technology in high-speed transmission networks to support faster interconnection between data centers. In this article, we will review recent progress for silicon PICs. The first part gives an overview of recent achievements in silicon PICs. The second part introduces the silicon photonic building blocks, including low-loss waveguides, passive devices, modulators, photodetectors, heterogeneously integrated lasers, and so on. In the third part, the recent progress on high-capacity silicon photonic transceivers is discussed. In the fourth part, we give a review of high-capacity silicon photonic networks on chip.show less

• Aug.20，2022
• Photonics Research,Vol. 10, Issue 9
• A106 (2022)

In this Letter, the feasibility of the high laser damage threshold liquid crystal spatial light modulator (LC-SLM) based on gallium nitride (GaN) transparent conductive electrode is pro

In this Letter, the feasibility of the high laser damage threshold liquid crystal spatial light modulator (LC-SLM) based on gallium nitride (GaN) transparent conductive electrode is proved. The laser induced damage threshold (LIDT) is measured, and a high LIDT reflective optical-addressed liquid crystal light valve (OALCLV) based on GaN is designed and fabricated. The proper work mode of the OALCLV is determined, and the OALCLV obtained a maximum reflectivity of about 55%, an on-off ratio of 55:1 and image response is demonstrated. show less

• Aug.20，2022
• High Power Laser Science and Engineering

Infrared femtosecond optical vortices open up many new research fields, such as optical micro-nano manipulation, time-resolved nonlocal spectroscopy in solids, vortex secondary radiatio

Infrared femtosecond optical vortices open up many new research fields, such as optical micro-nano manipulation, time-resolved nonlocal spectroscopy in solids, vortex secondary radiation and particle generations. In this letter, we demonstrate a femtosecond optical vortex laser system based on a two-stage optical parametric amplifier. In our experiment, 1.45 μm vortex signal pulses with energy of 190 μJ and 1.8 μm vortex idler pulses with energy of 158 μJ have been obtained, and the pulse durations are 51 fs and 48 fs respectively. Both the energy fluctuations of the signal and idler pulses are less than 0.5% (RMS), and the spectral fluctuations are less than 1.5% within one hour. This type of highly stable femtosecond optical vortex laser has a wide range of applications for vortex strong-field physics.show less

• Aug.20，2022
• High Power Laser Science and Engineering

The dephasing of the molecular alignment can lead to the deformation of the alignment signal during its periodic revivals. Most studies are concentrated on the first few rotational revi

The dephasing of the molecular alignment can lead to the deformation of the alignment signal during its periodic revivals. Most studies are concentrated on the first few rotational revival periods of the molecular alignment and neglect the dephasing effect. However, study of the alignment dephasing is still of great significance for both the long-term dynamics of the molecular alignment and the dephasing itself. In this work, we theoretically demonstrate that the dephasing effect is correlated with both the rotational temperature and the rotational revival period of the molecules. The results present that the dephasing is especially significant for those molecules with long rotational revival period at high rotational temperatures. The physics behind is explored by taking advantage of the coherence of the rotational quantum state population. This work deepens our understanding of the rotational dynamics and rotational spectroscopy in the molecular alignment. show less

• Aug.20，2022
• Chinese Optics Letters,Vol. 20, Issue 10
• (2022)

We designed a fs+ps double-pulse sequence by using a Mach-Zehnder-like apparatus to split single 120 fs-pulse into two sub-pulses, and one of them was stretched its width to 2 ps by a f

We designed a fs+ps double-pulse sequence by using a Mach-Zehnder-like apparatus to split single 120 fs-pulse into two sub-pulses, and one of them was stretched its width to 2 ps by a four-pass grating system. Through observing the ripples induced on ZnO surface, we found the ionization rate appeared to be higher for the sequence in which the fs-pulse arrived first. The electron rate equation was used to calculate changes of electron density distribution for the sequences with different delay times. We suggest that using temporal shaped fs-ps pulse sequence can achieve nonlinear ionization control and influence the induced ripples. show less

• Aug.20，2022
• Chinese Optics Letters,Vol. 21, Issue 2
• (2023)
Hangzhou, China25~27 November
Xi'an, ChinaAug 7-10, 2022
Three-year-old journal ranked among top optics journals in first year of recognition.
• Journal
• 1th Jul，2022
The image on the cover for Chinese Optics Letters Volume 20, Issue 5, reports reflective photon nanosieves that consist of metallic meta-mirrors sitting on a transparent quartz substrate. Upon illumination, these meta-mirrors offer the reflectance of &sim;50%, which is higher than the transmission of visible light through diameter-identical nanoholes.The image is based on original research by Samia Osman Hamid Mohammed et al. presented in their paper "Efficiency-enhanced reflective nanosieve holograms", Chinese Optics Letters 20 (5), 053602. (2022)
• Journal
• 27th May，2022