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Zurich Instruments AG - Boost Your Optics 1-24 LB

How Much Energy Are You Throwing Away?

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A uniform, or “top hat,” beam profile often is obtained at too great a cost. Laser remapping systems offer a high-throughput approach to beam shaping.

Kurt Kanzler, Lambda Research Optics Inc.

The Gaussian beam profile of a TEM00 laser is suitable for many applications. For targeting and alignment, the peaked Gaussian beam enables pinpoint precision. However, it is not ideal for other applications, including lithography, biomedical illumination and materials processing. For example, Figure 1 compares channels micromachined into stainless steel with a Gaussian beam and with a beam whose intensity profile resembles a gentleman’s top hat — flat across the top with steep, smooth sides. Clearly, the top-hat beam produces superior results. The sides and bottom of the channel are...Read full article

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    Published: July 2006
    Glossary
    lithography
    Lithography is a key process used in microfabrication and semiconductor manufacturing to create intricate patterns on the surface of substrates, typically silicon wafers. It involves the transfer of a desired pattern onto a photosensitive material called a resist, which is coated onto the substrate. The resist is then selectively exposed to light or other radiation using a mask or reticle that contains the pattern of interest. The lithography process can be broadly categorized into several...
    biomedical illuminationFeaturesGaussian beam profileindustriallithographymaterials processingTEM00 laser

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