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Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS


Real-time photonic processor for dynamic RF interference with picosecond latency

A new system-on-chip employs silicon photonics to process broadband information, reducing latency through direct analogue processing. The device successfully tested in two dynamic interference scenarios, demonstrating error-free operation and maintaining signal-to-noise ratios over 15 dB.

Ultrasensitive molecular sensing with synthesize complex-frequencey waves

Researchers demonstrate a new method to synthesize complex-frequency waves (CFW) to amplify molecular signals in graphene-based surface-enhanced infrared absorption (SEIRA). This approach increases the sensitivity of traditional SEIRA technologies, enabling the detection of trace molecules currently undetectable. CFWs enhance molecular...

Polarization-independent liquid-crystal phase modulators

Researchers have developed a new approach to creating liquid-crystal phase modulators that are polarization-independent and can achieve large phase depths. The devices use a light-controlled azimuth angle (LCAA) process to create multi-microdomain, orthogonally twisted structures with precise alignment.

Low-cost microscope projection photolithography system for high-resolution fabrication

Researchers have developed a low-cost and user-friendly technique called UV-LED-based microscope projection photolithography (MPP) for rapid high-resolution manufacturing of optical elements. This approach can fabricate features down to 85 nm, comparable to expensive methods like multi-photon and electron beam lithography.

Single-emitter super-resolved imaging of radiative decay rate enhancement

Researchers developed a method to measure enhanced light interaction at the nanoscale using single molecules as probes, achieving a 30-fold enhancement in radiative decay rates. This breakthrough provides precise control of bright single-photon emission sources and deepens understanding of nanophotonic interactions.

Nanoparticle magic: fine-tuning gold nanoparticles in tellurite glass for unique photonics

A team of scientists has developed a new approach to form gold nanoparticles in tellurite glasses, enabling precise control over their formation and plasmonic properties. This innovation has potential for real-world impact in exciting photonics research and applications.

A reflective display based on electro-microfluidic assembly of particles within suppressed water-in-oil droplet array

Researchers developed an innovative reflective display method using electro-microfluidic assembly of particles, enabling multicolored displays with high reversibility and viewing angles. The technique offers advantages in fabrication, response speed, and color performance, making it a promising candidate for green display technology.

Polarized hetero-structured luminant: The “marriage” of 2D materials and 0D quantum dots

Researchers developed an all-inorganic nano-heterostructure luminant with enhanced sensitivity, stability, and efficiency, paving the way for multifunctional optical control devices. The 0D/2D configuration enables polarized blue fluorescence and multifunctional capabilities.

Polarization-independent liquid-crystal phase modulators

Researchers have developed a new approach to polarization-independent liquid-crystal phase modulation using a light-controlled azimuth angle (LCAA) process. This process creates single-layer, multi-microdomain, orthogonally twisted structures with precise alignment, enabling high phase retardation and low polarization dependence.

TPL for photonic packaging: a promising solution

A team of scientists has developed new packaging technologies using TPL to address the challenges of photonic integrated circuits (PICs). The technology offers several unique advantages, including high-resolution 3D structures and customizable connections, which relax the alignment tolerance during PIC assembly.

Low-cost microscope projection photolithography system for high-resolution fabrication

Scientists have developed a low-cost and user-friendly technique called UV-LED-based microscope projection photolithography (MPP) for rapid high-resolution manufacturing of optical elements. MPP can fabricate microfluidic devices, biosensors, and other optical devices with feature sizes down to 85 nm.

Contact lenses developed by Khalifa University team respond to UV and temperature changes

Researchers at Khalifa University have developed state-of-the-art contact lenses that respond to both UV light and temperature changes. These smart lenses, incorporating photochromic and thermochromic powders, can block up to 45% of UV radiation and filter out blue light.

Dynamic z-scanning for ultrafast auto-focusing in laser processing

A team of researchers has developed a fast method to track surface location and adjust optical focus simultaneously without mechanical movement. The dynamic z-scanning technique reduces defocused laser pulses and increases processing speed when processing non-flat or changing samples.

E2E-BPF microscope: Extended depth-of-field microscopy using learning-based implementation of binary phase filter and image deconvolution

The E2E-BPF microscope overcomes traditional microscopes' limitations by extending depth-of-field using a learning-based binary phase filter and image deconvolution. This enables high-resolution imaging over larger spatial scales, reducing the need for refocusing.

CRONT: Empowering optical tweezers with "biometric eyes"

Researchers developed CRISPR-powered optothermal nanotweezers (CRONT) that can trap and enrich bio-nanoparticles, including gold nanoparticles and DNA molecules. The technique achieves single molecule level SNP detection with ultra-low detection volume, making it suitable for point-of-care diagnosis and biophotonics.

A highly efficient open-shell singlet luminescent diradical with strong magnetoluminescence properties

A new type of luminescent diradical has been created, showing high photoluminescence and photo-stability. The material demonstrates significant single-molecule magnetoluminescence properties, achieving a giant ML value of 210% at a magnetic field of 7 T.

Universal adaptive optics for microscopy through embedded neural network control

A new machine learning-based adaptive optics method, MLAO, enhances microscopy imaging by requiring fewer sample exposures and coping with high noise levels, random sample motions, and blinking events. The approach provides physical insights into the imaging process, enabling better understanding of aberrations and internal workings.

Night-time radiative warming using the atmosphere

Researchers develop a passive approach to night-time warming by harnessing energy from the atmosphere, reducing reliance on electric heaters and lowering energy consumption. The new strategy achieves significant temperature increases and annual electricity savings of over 300 kWh m-2 in various climate zones.

Three-dimensional label-free morphology of CD8+ T cells as a sepsis biomarker

Researchers developed an AI model analyzing 3D label-free changes in immune cell structure during healthy conditions, sepsis diagnosis, and recovery. Significant morphological changes were identified, suggesting CD8+ T-cell structures as a valuable complement to traditional diagnostic tools.

Optical and electrically driven single-molecular Raman switch

A team of scientists has developed a single-molecular Raman switch that can be controlled using both electrically driven conformational switching and optical inputs. The study demonstrates the use of near-field-enhanced techniques to manipulate molecular states, enabling highly accurate methods for nano-scale systems.

Spatiotemporal mode-locking and dissipative solitons in multimode fiber lasers

Recent review highlights research progress on spatiotemporal mode-locking (STML) and dissipative solitons (STDSs) in multimode fiber (MMF) lasers, outlining breakthrough perspectives for STML. Achieving ultrahigh pulse energy and arbitrary mode profiles is crucial, enabling diverse applications such as nonlinear microscopy.

Radiative cooling becomes more efficient with trenches and polymers

Researchers have developed a roll-to-roll polymer film for improved radiative cooling by arranging 3D trench-like structures within the thin layer of the polymer film. The novel technique achieves high cooling performance with low energy input, making it suitable for large-scale thermal management applications.

Valence conversion and site reconstruction in near-infrared-emitting chromium-activated garnet for simultaneous enhancement of quantum efficiency and thermal stability

Researchers developed a new garnet material with enhanced quantum efficiency and thermal stability, using chemical unit cosubstitution. The material shows promising applications in bio-tissue imaging, night-vision, and information encryption.

Phonon engineering in Yb:La2CaB10O19 crystal for extended lasing beyond the fluorescence spectrum

Researchers successfully extend lasing beyond the fluorescence spectrum of Yb-doped La2CaB10O19 crystal through phonon engineering. Theoretical calculations predict a broadband emission spectrum with increased phonon numbers, demonstrating potential for self-frequency doubling and various applications.

Manipulating nonlinear exciton polaritons in a WS2 monolayer with artificial lattices

Researchers have created deterministic potential wells to trap and manipulate exciton polaritons in WS2 monolayers at room temperature. This enables the achievement of strong nonlinearity while maintaining thermal stability, paving the way for integrated polariton-based devices.

Deep self-learning enables volumetric microscopy with 3D isotropic resolution

A new deep learning approach called Self-Net improves volumetric fluorescence microscopy's 3D resolution isotropy, enhancing image quality and enabling accurate analysis of complex biological structures. This method enables fast training and inference speed, promoting discoveries in life sciences.

High-speed electro-optic modulation in topological interface states of a one-dimensional lattice

Researchers have developed an ultracompact, high-speed, and energy-efficient electro-optic modulator using topological interface states in a 1D microstructure lattice. The device features a large modulation bandwidth of 104 GHz and low power consumption of 5.4 fJ/bit.

Focus on perovskite emitters in blue light-emitting diodes

Recent studies have made progress in developing blue PeLED devices, with techniques including compositional engineering, dimensional control, and size confinement. The goal is to increase efficiency and stability, overcoming the current limitations of 10% efficiency and insufficient stability. By exploring these technical routes, scien...

Whispering gallery microprobe for 2D mapping of enhanced Raman spectroscopy

Researchers developed a novel WGM microprobe to enhance Raman signals by combining surface-enhanced Raman spectroscopy (SERS) and whispering-gallery-mode (WGM) microresonators. The platform enables 2D hyperspectral imaging with signal enhancement, opening opportunities for material analysis and chemical imaging.

Optically anisotropic, electrically tunable microlens arrays formed via single-step photopolymerization-induced phase separation in polymer/liquid-crystal composite materials

Researchers developed a simple, one-step method for creating large-area liquid crystal microlens arrays (LC-MLAs) with high focusing quality. The LC-MLAs demonstrate polarization-dependent, electrically tunable properties, allowing for adjustable focal length and image depth control.

Ultra-wideband heterogeneous integrated photodiodes on thin-film lithium niobate platform

Researchers have developed high-speed and high-responsivity photodetectors on a thin-film lithium niobate platform, achieving a 3-dB bandwidth of 110 GHz and responsivity of 0.4 A/W at 1550-nm wavelength. The devices demonstrate potential for ultra-high-speed optical communications and multi-function integrated quantum photonics.

Blast away defects with lasers

A new laser-based process chain has been developed to fabricate fused silica optics with high laser-induced damage thresholds, overcoming conventional manufacturing limitations. The process uses CO2 lasers for uniform layer-by-layer surface removal, precisely eliminating subsurface mechanical damage and surface/subsurface contamination.

Diffractive networks enable quantitative phase imaging (QPI) through random diffusers

A new methodology for QPI of objects covered by random unknown phase diffusers uses diffractive optical networks and deep learning. The system axially spans ~70λ and performs all-optical phase recovery and quantitative imaging with high image quality and low power consumption.