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Super-resolution microscopy is rapidly gaining importance as an analytical tool in the life sciences. A compelling feature is the ability to label biological units of interest with fluorescent markers in living cells and to observe them…

Muon scattering tomography is a non-destructive technique used to image different materials by utilizing natural cosmic ray muons. Typically it requires position-sensitive detectors with a sub-millimeter resolution to effectively…

Instrumentation and Detectors · Physics 2025-02-19 Binghao Sun , Huiling Li , Quanyin Li , Hui Liang , Cong Liu , Hongbo Wang , Zibing Wu , Suyu Xiao , Weiwei Xu

In many laboratories, conventional bright-field transmission microscopes are available to study the structure and organization principles of fibrous tissue samples, but they usually provide only 2D information. To access the third…

Brillouin microscopy enables non-contact, three-dimensional mapping of viscoelasticity in living systems, yet two long-standing limitations have constrained its biological reach: the lack of high-spectral-resolution epi-detection and the…

Multiphoton microscopes employ femtosecond lasers as light sources because the high peak power of the ultrashort pulse allows for multiphoton excitation of fluorescence in the examined sample. However, such short pulses are susceptible to…

Optics · Physics 2024-08-13 Katarzyna Kunio , Jakub Bogusławski , Grzegorz Soboń

Significance: Histopathological analysis of tissues is an essential tool for grading, staging, diagnosing and resecting cancers and other malignancies. Current histopathological techniques require substantial sample processing prior to…

Medical Physics · Physics 2021-07-14 Benjamin Ecclestone , Deepak Dinakaran , Parsin Haji Reza

The development of voltage-sensitive fluorescent probes suggests fluorescence lifetime as a promising readout for electrical activity in biological systems. Existing approaches fail to achieve the speed and sensitivity required for voltage…

Optics · Physics 2023-06-27 Adam J. Bowman , Cheng Huang , Mark J. Schnitzer , Mark A. Kasevich

Histopathology image analysis is fundamental to digital pathology, with hematoxylin and eosin (H&E) staining as the gold standard for diagnostic and prognostic assessments. While H&E imaging effectively highlights cellular and tissue…

Image and Video Processing · Electrical Eng. & Systems 2025-11-18 Yao Du , Jiaxin Zhuang , Xiaoyu Zheng , Jing Cong , Limei Guo , Chao He , Lin Luo , Xiaomeng Li

The Two-Photon Absorption (TPA) process provides an excellent method for the characterisation of solid-state sensors due to its intrinsic 3D resolution for the excitation of electron-hole pairs. This paper presents the commissioning of a…

Multi-photon microscopy is a powerful tool in biomolecular research. Less complex and more cost effective excitation light sources will make this technique accessible to a broader community. Especially semiconductor diode seeded fiber…

The potential for improving the penetration depth of optical coherence tomography systems by using increasingly longer wavelength light sources has been known since the inception of the technique in the early 1990s. Nevertheless, the…

Appropriately designed dual-core fibers using coupling-length phase matching (CLPM) allow for phase-matched frequency downconversion over wide frequency intervals using the third-order optical nonlinearity of glass. By tuning the distance…

Optics · Physics 2024-05-21 Jing Su , Ivan Biaggio

Spatial transcriptomics (ST) reveals spatial heterogeneity of gene expression, yet its resolution is limited by current platforms. Recent methods enhance resolution via H&E-stained histology, but three major challenges persist: (1)…

Image and Video Processing · Electrical Eng. & Systems 2025-08-12 Xuepeng Liu , Zheng Jiang , Pinan Zhu , Hanyu Liu , Chao Li

The observation of the Hong-Ou-Mandel (HOM)-type two-photon interference (TPI) has played an important role in the development of photonic quantum technologies. The time-resolved coincidence-detection technique has been effectively used to…

Quantum Physics · Physics 2021-06-16 Heonoh Kim , Osung Kwon , Han Seb Moon

With the rapid development of digital pathology, virtual staining has become a key technology in multimedia medical information systems, offering new possibilities for the analysis and diagnosis of pathological images. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Hao Yang , JianYu Wu , Run Fang , Xuelian Zhao , Yuan Ji , Zhiyu Chen , Guibin He , Junceng Guo , Yang Liu , Xinhua Zeng

Quantum state lifetimes $T_2$, or equivalently homogeneous linewidths $\Gamma_h = 1/\pi T_2$, are a key parameter for understanding decoherence processes in quantum systems and assessing their potential for applications in quantum…

Fourier Ptychographic Microscopy (FPM) is a computational imaging method that is able to super-resolve features beyond the diffraction-limit set by the objective lens of a traditional microscope. This is accomplished by using synthetic…

Signal Processing · Electrical Eng. & Systems 2019-04-09 Michael Kellman , Emrah Bostan , Michael Chen , Laura Waller

Histological Tertiary Lymphoid Structures (TLSs) are increasingly recognized for their correlation with the efficacy of immunotherapy in various solid tumors. Traditionally, the identification and characterization of TLSs rely on…

Image and Video Processing · Electrical Eng. & Systems 2024-08-27 Qiuli Wang , Yongxu Liu , Li Ma , Xianqi Wang , Wei Chen , Xiaohong Yao

Large field-of-view (FOV) microscopic imaging with high lateral resolution (1-2 microns for high space-bandwidth product) plays a pivotal role in biomedicine and biophotonics, especially within the label-free regime, e.g., for whole slide…

We present a novel experimental setup in which magnetic and optical tweezers are combined for torque and force transduction onto single filamentous molecules in a transverse configuration to allow simultaneous mechanical measurement and…

Biomolecules · Quantitative Biology 2015-06-24 Zhaokun Zhou , Helen Miller , Adam J. M. Wollman , Mark C. Leake