Abstract: We consider the propagation of Gaussian beams in a waveguide with gain and loss in the ... for the beam in the semiclassical limit that are valid when the waveguide profile is locally well ...

GA, UNITED STATES, March 13, 2025 /EINPresswire / -- A novel approach to optical beam shaping based on topological physics effect experimentally demonstrated for the first time. By fabricating ...

However, the standard Gaussian laser beam they use has significant disadvantages ... Light Modulator), which will enable researchers to investigate almost any beam profile in the LPBF process. As it ...

The Gaussian distribution pattern causes a substantial energy ... For instance, a top hat beam shaper uses diffractive optical elements or DOEs to shape the beam profile and achieve a top hat ...

So, whenever high beam quality is not required, such as printing featureless bulk material, Gaussian beam profiles become a burden, not a benefit. The challenge facing the industry was clear: for ...

The latter is crucial for assessing a beam profile's homogeneity along its propagation distance. Typical irradiance distributions include the Gaussian, which shows a decline in irradiance with ...

Moreover, the BGb profiles operated at wavelength range ... and technique is promising to readily enable the Bessel-Gaussian beam in widespread optical communication and micro-manipulation ...

Electrical and Computer Engineering Department, Baskin School of Engineering, University of California Santa Cruz, Santa Cruz, California 95064, United States Nanostructured Energy Conversion ...

But more often than not, the beam from a laser system will be more accurately described by the Gaussian mode approximation. The Gaussian mode profile is characterised by having a very smooth peak that ...

Researchers at Heriot-Watt University have improved a fibre optic endoscope in a demonstrated of laser-enhanced chemical etching, and developed a way to significantly speed up such 3d patterning of ...