Laser speckle arises from the high spatial and temporal coherence of laser light, generating granular interference that can degrade image quality in numerous applications. Research in this field ...

The use of lasers in fire detection systems usually involves detecting the variation in a laser beam's amplitude caused by the fire or its effects, but factors such as dust or steam can cause enough ...

An optical fiber within that device emits laser light onto the vessel walls – that light is partially absorbed and partially scattered back by any plaque deposits it encounters. The scattered light ...

Laser Speckle Imaging (LSI) has emerged as a pivotal optical technique in the non‐invasive visualisation and quantification of blood flow dynamics. By analysing the interference pattern generated when ...

In the majority of cases, graft failure after heart transplantation is attributable to abnormalities like severe coronary artery disease. As donors with extended criteria like advanced age and ...

A powerful tool for screening donor hearts: laser speckle imaging captures detailed images of blood vessels in a beating heart outside the body. (Courtesy: Plyer et al doi 10.1117/1.JBO.28.4.046007) ...

A team from University of Twente and the University of Florence has successfully imaged a fluorescent object that was hidden behind a thin opaque screen, and done so without the need for either a ...

Measuring blood flow in the brain is critical for responding to a range of neurological problems, including stroke, traumatic brain injury (TBI) and vascular dementia. But existing techniques, ...

In a new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.210045, researchers from the National University of Singapore, Singapore, discuss confocal laser speckle autocorrelation ...

Edmund Optics’ Laser Speckle Reducers suit a wide variety of beam homogenization, 3D scanning, metrology, microscopy, and interferometry applications. They offer diffusing angles of 1°, 10°, and 20°, ...