用于检测和化学分析的塞曼激光干涉测量

Laser Applications to Chemical Analysis Pub Date : 1993-12-01 DOI:10.1364/laca.1994.thb.5

R. Johnston

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引用次数: 0

摘要

塞曼激光干涉术[1-3]依靠使用双频塞曼效应激光器。这种氦氖激光器使用一个精心控制的磁场，在激光等离子体管内部引起塞曼能级分裂。结果，激光器发射出两条共线的激光线，它们具有正交的线性偏振。这两条激光线的波长接近λ = 632.8 nm，频率仅相差250 kHz。

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Zeeman Laser Interferometry for Detection and Chemical Analysis

Zeeman Laser Interferometry Zeeman laser interferometry [1-3] relies on use of a two-frequency, Zeeman effect laser. This helium-neon laser uses a carefully controlled magnetic field to cause a Zeeman energy level splitting inside the laser plasma tube. As a result, the laser emits two collinear laser lines with orthogonal linear polarizations. The two laser lines have a wavelength near λ = 632.8 nm, and differ by only 250 kHz in frequency.

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Laser Applications to Chemical Analysis

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