Yb:KGW and Yb:KYW crystals are typically pumped with diode lasers at around 980 nm due to the maximum absorption band around this wavelength.

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Elevate your optical endeavors with the groundbreaking innovation and affordability embodied in our flat fresnel magnifying lens. It's not just a lens; ...

Euclid discovered the law of reflection. This states that light travels in straight lines and will reflect from a smooth surface at the same angle it hit ...

Beyond the tough love of covenant-keeping is a warmth and tenderness that can't be denied. So while John Piper's This Momentary Marriage focuses on the theological meaning of marriage, its companion volume, Velvet Steel, reveals the rich, emotional dimension.

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A traditional reticle, calibrated in mils, giving shooters the added ability to take long range shots with a high degree of precision.

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Neutral Density (ND) filters reduce the intensity of all wavelengths, or colors, of light equally from entering the camera, in measured amounts. This allows the ...

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Figure 2. This arrangement of three lenses in a telescope produces an upright final image. The first two lenses are far enough apart that the second lens ...

Most people in the world have no experience of lasting joy in their lives. We’re on a mission to change that. All of our resources exist to guide you toward everlasting joy in Jesus Christ.

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Sep 1, 2022 — The blazed grating, also known as the echelette grating, is a specific form of reflective or transmission diffraction grating designed to ...

Within these pages Piper shares a series of poems written for his wife, Noël, during the first forty-two years of their relationship, starting from the day of their engagement. In it he provides readers with a taste of one man's tender affections for his wife-poems that he hopes will fan into flame readers' affections for their own spouses and ultimately for the Maker of marriage.

A hex key (also, hex wrench, Allen key and Allen wrench or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses ( ...