More Info on Alpine Research Optics (ARO)

Since 1991, ARO has provided some of the highest LDT, low loss laser optics in the industry. Coatings range from 193nm through ultrafast and NIR wavelengths for the semiconductor, medical and scientific research markets. Production include prototype to mid-level volumes for windows, mirrors, prisms, beamsplitters and spherical optics. ISO 9001:2015.

Articles

FIGURE 1. Group velocity dispersion causes different wavelengths to travel through an optic at different velocities. In a broadband pulse, this has the effect of lengthening the overall pulse envelope.

Optics

ULTRAFAST OPTICS: Coatings and optics expand ultrafast laser applications

Innovative solutions help to avoid pulse stretching caused buy GVD and spectral distortion, and enable optical components that preserve ultrafast-pulse properties.

FIGURE 1. The peak reflectivity and spectral bandwidth of a quarter-wave-stack high reflector increases with layer count. A wider-bandwidth coating also can be used over a larger angular range.

Optics

Know the trade-offs when specifying mirrors

Achieving the desired performance and cost targets for laser mirrors requires an understanding of design and fabrication parameters.

FIGURE 1. Fused silica samples are irradiated with an argon fluoride excimer laser beam to evaluate performance in 193-nm lithographic systems. Visible fluorescence is indicative of the absorption of 193-nm radiation, though the correlation between the two is not straightforward.

Optics

Materials challenge 193-nm optics

Projection optics for lithographic steppers are typically complex, expensive systems formed of precision components and cost in excess of $1 million. These objectives must provide...

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Executive Forum

Photonics Business Moves: December 1, 2023

Here are the top four photonics business moves that made headlines during the week ending December 1, 2023.