A significant challenge in the development of these diodes is optimizing their beam divergence, which refers to the spreading of the laser beam as it travels. Recent research has focused on ...

Spatial coherence means that there is a well-defined beam with well-defined phase across it. For many lasers, the divergence of the laser beam is as low as 1–2 times the diffraction limit ...

Achieving practical interstellar travel requires overcoming the immense challenge of reaching extraordinary velocities. To ...

Another benefit is the higher power output. Multimode laser diodes are able to generate higher optical power, making them ...

By combining the National Ignition Facility (NIF) laser and ultra-light metal foams, researchers at Lawrence Livermore ...

Scientists from China have developed high-performance colloidal quantum-dot (CQD)  surface-emitting laser array based on ...

depending on the transmitted laser beam divergence, the FOV of the receiving telescope and the angle between the axes of the laser beam and telescope. The processed data are already corrected for this ...

When patterned as diffractive lenses, LCPGs can provide non-mechanical control over beam divergence and variable focusing. These dynamic elements enable a range of applications, such as machine vision ...