Multi-layer mirror

Figure 9.6 Intensity of the long-lived o-Ps component as a function of positron incident energy for Si02/Ta205 multi-layer mirror. (Suzuki et al.,...

Matsunari, T. Aoki, K. Murakami, Y. Gomei, S. Terashima, H. Takase, M. Tanabe, Y. Watanabe, Y. Kakutani, M. Niibe, and Y. Fukuda, Carbon deposition on multi layer mirrors by extreme ultra... 

The cell has an optical capability of 2.5 m, using 12 transversals. When applied to CO2, however, the absorption coefficient (ac) is of sufficient size to allow measurements using an 0.5 m (4 transversals) path. Due to the magnitude of ac, a large difference in intensity develops as the beam passes through the cell. Maximum detection and amplification efficiency can only be achieved when the intensity levels of the sample and reference beams are approximately the same. To help balance the intensity levels, the mirror coatings (multi-layer silicon/silicon dioxide) have been optimized to pass the sample beam (99 percent reflectance at 4.3 pm) and partially attenuate the reference wavelength (95 percent... 

Such lenses are cheaply constructed but suffer from the absorption and scattering. Many other techniques for the formation of intense X-ray microbeams are available on the basis of the use of various types of X-ray optics based on refraction, diffraction, or reflection bent mirrors, crystals and multi-layers, linear and tapered glass mono-capillaries, complex polycapillary lens systems, transmission Fresnel zone... 

FDA PI prepared from mDA6FPPO was reported to have good atomic oxygen (AO) and UV resistanee. These properties make it potentially useful for a variety of applications on space craft such as thin film membranes on antennae, second surface mirrors, themal/optical coatings and multi-layer thermal insulation (MLI) blanket materials [234],... 

With its mirror finish, aluminized clothing is very effective at reflecting radiant heat. The aluminized coating can reflect up to 95 percent of thermal radiation away from the wearer, and some fabrics can withstand temperatures as high as 3000°F for short durations. Aluminized fabrics are often constructed with a flame-resistant base fabric and multiple layers of aluminum, protective films, and heat-stable adhesives so that when one layer of aluminum breaks down, another layer is there to protect. This multi-layer structure improves abrasion resistance and helps ensure that fabrics remain highly reflective even after repeated use and proper care and cleaning. 

Vital to the operation of an interference filter is a very high reflectance of the mirror coatings adjacent to the spacer layer. The absorption of the metal mirrors can be reduced and thus the maximum transmittance of the filter increased if both metal layers are increased in reflectance by additionally deposited high reflecting dielectric multilayers [124]. In this way, with a first-order filter, a half width of 2 nm and a transmittance maximum of 41% can be obtained [124]. If, however, the metal mirrors are completely replaced by absorption-free all-dielectric high reflecting multi-... 

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