Practical tests for distinguishing slow light from saturable absorption
نویسندگان
چکیده
منابع مشابه
Slow-light enhanced absorption in a hollow-core fiber.
Light traversing a hollow-core photonic band-gap fiber may experience multiple reflections and thereby a slow-down and enhanced optical path length. This offers a technologically interesting way of increasing the optical absorption of an otherwise weakly absorbing material which can infiltrate the fibre. However, in contrast to structures with a refractive index that varies along the propagatio...
متن کاملCoherent perfect absorption and reflection in slow-light waveguides.
We identify a family of unusual slow-light modes occurring in lossy multimode grating waveguides, for which either the forward or backward mode components, or both, are degenerate. In the fully degenerate case, the response can be modulated between coherent perfect absorption (zero reflection) and perfect reflection by varying the wave amplitudes in a uniform input waveguide. The perfectly abso...
متن کاملSlow-light enhancement of Beer-Lambert-Bouguer absorption
Optical techniques are finding widespread use in chemical and bio-chemical analysis, and Beer–Lambert– Bouguer (BLB) absorption in particular has become one of the classical workhorses in analytical chemistry [1]. During the past decade, there has been an increasing emphasize on miniaturization of chemical analysis systems [2] and naturally this has stimulated a large effort in integrating micr...
متن کاملSlow-light interferometry: practical limitations to spectroscopic performance
We investigate how the use of slow-light methods can enhance the performance of various types of spectroscopic interferometers under practical conditions. We show that, while in ideal cases the enhancement of the spectral resolution is equal to the magnitude of the group index of the slow-light medium, the ratio between the associated gain or loss and the group index of the slow-light medium ac...
متن کاملMechanisms underlying saturable intestinal absorption of metformin.
The purpose of the study was to elucidate mechanisms of metformin absorptive transport to explain the dose-dependent absorption observed in humans. Apical (AP) and basolateral (BL) uptake and efflux as well as AP to BL (absorptive) transport across Caco-2 cell monolayers were evaluated over a range of concentrations. Transport was concentration-dependent and consisted of saturable and nonsatura...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2010
ISSN: 1094-4087
DOI: 10.1364/oe.18.013204