Abstract: Electronic devices having a colored marking are described. The colored markings described herein may include colored pixels having a color-producing feature, which may be laser-formed. For example, the color of the color-producing feature may be due at least in part to interference of light. In some cases, the colored marking is a multicolor marking that includes pixels having different colors. The colored marking may include an array of the colored pixels and in some cases the colored marking may define an image.

Abstract: A housing for an electronic device is disclosed. A surface of the housing includes a laser-formed marking. The marking comprises a plurality of laser-formed pixels and may include a grayscale image. Electronic devices including the laser-marked housings and techniques for laser-marking the housings are also disclosed.

Abstract: A housing for an electronic device is disclosed. A surface of the housing includes a laser-formed marking. The marking comprises a plurality of laser-formed pixels and may include a grayscale image. Electronic devices including the laser-marked housings and techniques for laser-marking the housings are also disclosed.

Abstract: A multipass chirped pulse amplification system outfitted with a single-grating, simultaneous spatial and temporal focusing (SSTF) compressor platform is provided. Such a system provides the ability to vary the beam aspect ratio of an SSTF beam, and thus the degree of pulse-front tilt at a focus, while maintaining a net zero-dispersion system. The optical system may include a first optical element or set of optical elements that receives and then varies a pulse-front tilt of a light beam, and a second optical element or set of optical elements that focuses the light beam having the varied pulse-front tilt that is output by the first optical element or set of optical elements. The first optical element or set of optical elements includes an optical grating, two dihedrals, and a retroflector roof mirror.

Abstract: A multipass chirped pulse amplification system outfitted with a single-grating, simultaneous spatial and temporal focusing (SSTF) compressor platform is provided. Such an system provides the ability to vary the beam aspect ratio of an SSTF beam, and thus the degree of pulse-front tilt at a focus, while maintaining a net zero-dispersion system. The optical system may include a first optical element or set of optical elements that receives and then varies a pulse-front tilt of a light beam, and a second optical element or set of optical elements that focuses the light beam having the varied pulse-front tilt that is output by the first optical element or set of optical elements. The first optical element or set of optical elements includes an optical grating, two dihedrals, and a retroflector roof mirror.