منابع مشابه
Effect of light Polarization on the absorption index of alkali metal vapor in optical pumping phenomenon
Recently atomic magnetometers are one of the best tools in biomagnetic measurement such as magnetic field of brain and heart. In this paper, the technology of optically pumped atomic magnetometer based on circularly polarized light absorption pumping is described. We have been investigated a new method for measuring polarization effect in an alkali vapor based on polarized light transmission. I...
متن کاملBarbiturates, fluorescence quenching, and the "flash-light" phenomenon.
1. Dussault, J. H., Coulombe, P., Laberge, C., et al., Preliminary report on a mass screening program for neonatal hypothyroidism. J. Pediatr. 86, 670 (1975). 2. Larsen, P. R., and Broskin, K., Throxine (T-4) immunoassay using filter paper blood samples for screening neonates for hypothyroidism. Pediatr. Res. 9, 604 (1975). 3. Walfish, P. G., Screening for neonatal hypothyroidism using a dried ...
متن کاملKoebnerization phenomenon after broadband light therapy in a patient with cutaneous sarcoidosis
ALA: aminolevulinic acid BBL: broadband light IPL: intense pulse light Nd:YAG: neodymium-doped yttrium aluminium garnet PDT: photodynamic therapy INTRODUCTION Sarcoidosis is an inflammatory disease characterized by noncaseating epithelioid cell granulomas. Skin involvement is seen in approximately onequarter of patients. Multiple cutaneous variants in sarcoidosis include lupus pernio, Lofgren s...
متن کاملInterferometric characterization of the structured polarized light beam produced by the conical refraction phenomenon.
The interest on the conical refraction (CR) phenomenon in biaxial crystals has revived in the last years due to its prospective for generating structured polarized light beams, i.e. vector beams. While the intensity and the polarization structure of the CR beams are well known, an accurate experimental study of their phase structure has not been yet carried out. We investigate the phase structu...
متن کاملSimulating the Optical Phase Conjugation Phenomenon of Light Multiply Scattered through a Macroscopic Random Medium
The light scattering effects of turbid media causing opacity may be undone via Optical Phase Conjugation (OPC). Here we rigorously simulate light scattering through a macroscopic random using the pseudospectral time-domain (PSTD) technique. The OPC phenomenon of multiply scattered light can be quantitatively analyzed which is not feasible otherwise. Specifically, factors affecting the electroma...
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ژورنال
عنوان ژورنال: Nature
سال: 1884
ISSN: 0028-0836,1476-4687
DOI: 10.1038/030194b0