Open tubular column gas chromatography/mass spectrometry (GC/MS) has become one of the most versatile and powerful tools for the chemical analysis of volatile samples. The inherently high selectivity and sensitivity of the technique stems from its unique capability to separate and subsequently inden
Nonlinear optical effects in extended three-dimensional media are sufficiently well known that in textbooks they are commonly treated using plane waves that can grow or deplete along the propagation direction. When two of the dimensions are decreased to micrometer size while the third dimension remains extended, as in the case of propagation along an optical fiber, large nonlinear optical phenomena can occur because total internal reflection can maintain a high electric field intensity over many meters along the fiber.
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