A method is described for producing several liters of nuclear spin polarized 129Xe gas via spin exchange with an optically pumped Rb vapor. We use a 140 W AlGaAs laser diode array whose broad spectral output is efficiently absorbed by employing ∼10 atm of 4He to pressure broaden the Rb D1 absorption profile. 129Xe is polarized in a continuous gas flow and is then cryogenically accumulated and stored. Extensions of this technique should enable the production of tens of liters of 129Xe with a nuclear spin polarization of order 50%. Production of laser‐polarized 129Xe in liter quantities is important for the continued development of magnetic resonance imaging using spin‐polarized 129Xe.

Elliptical polarization

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P-polarized light

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Linear polarization

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Infrared light is an electromagnetic radiation between microwave and visible light, with a wavelength of 0.78 ∼ 1000 μm, including near-infrared (NIR, 0.78 ∼ ...

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Polarization

S-polarization

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A: Numerical aperture measures the objective's ability to gather light and determines resolution. Higher NA results in superior resolution, allowing finer ...

Electric polarization

Circularlypolarizedlight

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B. Driehuys, G. D. Cates, E. Miron, K. Sauer, D. K. Walter, W. Happer; High‐volume production of laser‐polarized 129Xe. Appl. Phys. Lett. 16 September 1996; 69 (12): 1668–1670. https://doi.org/10.1063/1.117022

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Offering the ability to customize a planar silicon photodiode with either single or multiple diode structures. P-on-N structures with low leakage.

Jul 20, 2023 — These coatings can be applied to the back, front, or both sides of your lenses to control the amount of light that enters your eyes. AG and AR ...