Differential reflection phase shift under conditions of attenuated internal reflection

Differential reflection phase shift under conditions of attenuated internal reflection

Attenuated internal reflection terahertz imaging.

We present a terahertz (THz) imaging technique based on attenuated internal reflection, which is ideally suited for the analysis of liquid and biological samples. Inserted in a THz time-domain system, and using a high-resistivity low loss silicon prism to couple the THz wave into the sample, the detection scheme is based on the relative differential spectral phase of two orthogonal polarization...

Attenuated partial internal reflection infrared spectroscopy.

A new method for the spectroscopic study of absorbing films is proposed. In contrast to the well-established methods that take advantage of the attenuation of total internal reflection (ATR) to obtain spectra, we intentionally arrange the optics to permit partial internal reflection from the sampling prism face. Attenuated partial internal reflection (APR) spectroscopy is introduced through the...

Single-reflection attenuated total reflection of organic monolayers on silicon.

Attenuated total re ection (ATR) spectroscopy, a wellknown surface technique, is frequently used for examining very thin Ž lms on substrates. However, when it comes to examining thin Ž lms on silicon substrates, the high refractive index of the substrates seems to preclude ATR analysis. This paper demonstrates that extraordinary sensitivity can be achieved by using ATR to analyze monolayers on...

Internal Approachability and Reflection

We prove that the Weak Reflection Principle does not imply that every stationary set reflects to an internally approachable set. We show that several variants of internal approachability, namely internally unbounded, internally stationary, and internally club, are not provably equivalent. Let λ ≥ ω2 be a regular cardinal, and consider an elementary substructure N ≺ H(λ) with size א1. Then N is ...