In the semiconductor industry, extremely small surface defects and particles are a major concern that reduces yield and also costs producers time and money. It is therefore critical to inspect the surface of semiconductor wafers for defects and contamination, a challenge many of Holo/Or’s customers in the semiconductor metrology industry face. One of the faster … Continue reading
Have you tried our beam samplers for laser process monitoring? These simple, robust grating-like DOEs are coated with high LDT AR coating and can handle high power densities and ultrashort (including fs) pulses. Diffractive samplers have multiple orders that can be used for sampling the beam with various ratios. For example, the first order can sample … Continue reading
A top hat laser beam is a laser beam whose intensity profile is flat and uniform, with sharp edges where the energy drops rapidly to zero. Such a flat-top energy distribution is called a top hat energy distribution. This beam shape is highly useful in many industrial laser applications. The top hat energy distribution can … Continue reading
Did you know lasers can cut glass tubes and cuvettes? With ultrashort pulsed lasers and Holo/Or’s special curved glass cutting diffractive optical elements (DOEs), you can cut up to several mm of curved glass tube with a spot as small as 3 µm! Laser glass cutting is often done by axicon-generated Bessel beams that get … Continue reading
Ever wondered if you can use a DOE with a 10 nm bandwidth laser? Or if Holo/Or’s elements can handle your 20 kW laser? No need to keep wondering. Holo/Or’s new FAQ page is live on their website, providing short and precise answers to many of the questions that customers ask. The FAQs are organized into … Continue reading
Two members of the Holo/Or staff have recently published an article about the potential of new 3D beam shaping techniques to enable more productive ultrashort laser material processing. There is discussion of laser glass cutting of curved surface and with chamfers included, channel writing for micro fluidics, scribing on the inside of tubes and much … Continue reading