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View article: High-resolution quantitative phase camera utilizing a polarization-modulated diffractive optical element
High-resolution quantitative phase camera utilizing a polarization-modulated diffractive optical element Open
Quantitative phase imaging (QPI) is an emerging technique that enables label-free, nondestructive, and full-field quantitative imaging of optical phase. However, the complexity of its optical configuration and limited temporal or spatial r…
View article: Optical intensity-gradient torque due to chiral multipole interplay
Optical intensity-gradient torque due to chiral multipole interplay Open
Owing to the ubiquity and easy-to-shape property of optical intensity, the intensity gradient force of light has been most spectacularly exploited in optical manipulation. Manifesting the intensity gradient as an optical torque to spin par…
View article: Optical tweeze-sectioning microscopy for 3D imaging and manipulation of suspended cells
Optical tweeze-sectioning microscopy for 3D imaging and manipulation of suspended cells Open
Optical manipulation and detection of biological particulates are crucial procedures in biophotonics. Optical sectioning (OS) opens the avenue to three-dimensional (3D) microscopy, but nonoptical approaches, including sample adhesion and m…
View article: Reactive helicity and momentum of tightly focused hybrid polarized vector beams
Reactive helicity and momentum of tightly focused hybrid polarized vector beams Open
Tailoring the reactive helicity and momentum of electromagnetic fields has emerged as a unique way to control light-matter interaction. In this paper, we explore these reactive quantities in hybrid polarized vector beams (HPVBs) that are t…
View article: Wavefront correction with image-based interferometric focus sensing in two-photon microscopy
Wavefront correction with image-based interferometric focus sensing in two-photon microscopy Open
Adaptive optics is a technology that corrects wavefront distortions to enhance image quality. Interferometric focus sensing (IFS), a relatively recently proposed method within the field of adaptive optics, has demonstrated effectiveness in…
View article: Upconversion Photoluminescence Lifetime Imaging via Multi-Prior Physics-Enhanced Deep Learning
Upconversion Photoluminescence Lifetime Imaging via Multi-Prior Physics-Enhanced Deep Learning Open
Upconversion photoluminescence lifetime imaging has emerged as a transformative analytical tool by leveraging the temporal signatures of luminescent probes to resolve molecular interactions. While compressed ultrafast photography offers di…
View article: Artificial potential field-empowered dynamic holographic optical tweezers for particle-array assembly and transformation
Artificial potential field-empowered dynamic holographic optical tweezers for particle-array assembly and transformation Open
Owing to the ability to parallel manipulate micro-objects, dynamic holographic optical tweezers (HOTs) are widely used for assembly and patterning of particles or cells. However, for simultaneous control of large-scale targets, potential c…
View article: Optical intensity-gradient torque due to chiral multipole interplay
Optical intensity-gradient torque due to chiral multipole interplay Open
Owing to the ubiquity and easy-to-shape property of optical intensity, the intensity gradient force of light has been most spectacularly exploited in optical manipulation of small particles. Manifesting the intensity gradient as an optical…
View article: Gradient and curl optical torques
Gradient and curl optical torques Open
Optical forces and torques offer the route towards full degree-of-freedom manipulation of matter. Exploiting structured light has led to the discovery of gradient and curl forces, and nontrivial optomechanical manifestations, such as negat…
View article: Underwater image enhancement via color correction and multi-feature image fusion
Underwater image enhancement via color correction and multi-feature image fusion Open
The light attenuation underwater causes the actual underwater images to suffer from color cast, low contrast, and weak illumination. To address these issues, an effective fusion-based method is proposed, which realizes color correction (CC…
View article: High Fidelity Full-Color Optical Sectioning Structured Illumination Microscopy by Fourier Domain Based Reconstruction
High Fidelity Full-Color Optical Sectioning Structured Illumination Microscopy by Fourier Domain Based Reconstruction Open
The natural color of biological specimens plays a crucial role in body protection, signaling, physiological adaptations, etc. Full-color optical sectioning structured illumination microscopy (OS-SIM) color is a promising approach that can …
View article: Synergistic effects and competitive relationships between DOC and DOX as acting on DNA molecules: Studied with confocal Raman spectroscopy and molecular docking technology
Synergistic effects and competitive relationships between DOC and DOX as acting on DNA molecules: Studied with confocal Raman spectroscopy and molecular docking technology Open
Docetaxel (DOC) is one of the second-generation antineoplastic drugs of the taxanes family with excellent antitumor activity. However, the mechanism of DOC inducing tumor cell apoptosis and treating cancer diseases, especially its interact…
View article: Studying the Effects and Competitive Mechanisms of YOYO-1 on the Binding Characteristics of DOX and DNA Molecules Based on Surface-Enhanced Raman Spectroscopy and Molecular Docking Techniques
Studying the Effects and Competitive Mechanisms of YOYO-1 on the Binding Characteristics of DOX and DNA Molecules Based on Surface-Enhanced Raman Spectroscopy and Molecular Docking Techniques Open
Revealing the interaction mechanisms between anticancer drugs and target DNA molecules at the single-molecule level is a hot research topic in the interdisciplinary fields of biophysical chemistry and pharmaceutical engineering. When fluor…
View article: Computational Imaging: The Next Revolution for Biophotonics and Biomedicine
Computational Imaging: The Next Revolution for Biophotonics and Biomedicine Open
This Editorial is the preface for the topical collection of “Computational Imaging for Biophotonics and Biomedicine”, which collates the 12 contributions listed in Table 1 [...]
View article: Enantioselective Optical Trapping of Multiple Pairs of Enantiomers by Focused Hybrid Polarized Beams
Enantioselective Optical Trapping of Multiple Pairs of Enantiomers by Focused Hybrid Polarized Beams Open
Enantiomers (opposite chiral molecules) usually exhibit different effects when interacting with chiral agents, thus the identification and separation of enantiomers are of importance in pharmaceuticals and agrochemicals. Here an optical ap…
View article: Multi-prior physics-enhanced neural network enables pixel super-resolution and twin-image-free phase retrieval from single-shot hologram
Multi-prior physics-enhanced neural network enables pixel super-resolution and twin-image-free phase retrieval from single-shot hologram Open
Digital in-line holographic microscopy (DIHM) is a widely used interference technique for real-time reconstruction of living cells’ morphological information with large space-bandwidth product and compact setup. However, the need for a lar…
View article: Concentric ring optical traps for orbital rotation of particles
Concentric ring optical traps for orbital rotation of particles Open
Optical vortices (OVs), as eigenmodes of optical orbital angular momentum, have been widely used in particle micro-manipulation. Recently, perfect optical vortices (POVs), a subclass of OVs, are gaining increasing interest and becoming an …
View article: Redundant information model for Fourier ptychographic microscopy
Redundant information model for Fourier ptychographic microscopy Open
Fourier ptychographic microscopy (FPM) is a computational optical imaging technique that overcomes the traditional trade-off between resolution and field of view (FOV) by exploiting abundant redundant information in both spatial and freque…
View article: Multi-harmonic structured illumination-based optical diffraction tomography
Multi-harmonic structured illumination-based optical diffraction tomography Open
Imaging speed and spatial resolution are key factors in optical diffraction tomography (ODT), while they are mutually exclusive in 3D refractive index imaging. This paper presents a multi-harmonic structured illumination-based optical diff…
View article: Design of Fourier ptychographic illuminator for single full-FOV reconstruction
Design of Fourier ptychographic illuminator for single full-FOV reconstruction Open
Fourier ptychographic microscopy (FPM) is a spatial-temporal-modulation high-throughput imaging technique via a sequential angle-varied LED illumination. Therefore, the illuminator is one of the key components and the design of this illumi…
View article: Advances in light transverse momenta and optical lateral forces
Advances in light transverse momenta and optical lateral forces Open
Harnessing linear and angular momenta of light is one of the cornerstones in modern optics and has found tremendous applications in optical circuits, particle manipulation, metrology, quantum information processing, etc. Emerging theoretic…
View article: Characterization of the angular memory effect of dynamic turbid media
Characterization of the angular memory effect of dynamic turbid media Open
The optical angular memory effect (AME) is a basic feature of turbid media and defines the correlation of speckles when the incident light is tilted. AME based imaging through solid scattering media such as ground glass and biomedical tiss…
View article: Optical Forces on Multipoles Induced by the Belinfante Spin Momentum
Optical Forces on Multipoles Induced by the Belinfante Spin Momentum Open
The Belinfante spin momentum (BSM) is a fundamental yet enigmatic quantity of electromagnetic fields. It vanishes from the global momentum of the field, but can be detected locally, manifesting itself as an optical force on small particles…