From: National Institute of Standards and Technology (NIST) <subscriptions@nist.gov>
Date: Tue, Jul 22, 2014 at 9:06 AM
Subject: National Institute of Standards and Technology (NIST) NIST on Flickr Update
To: iammejtm@gmail.com
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You are subscribed to NIST on Flickr for National Institute of Standards and Technology (NIST).
National Institute of Standards and Technology posted a photo:
Schematic of NIST's one-way metamaterial. Forward travelling green light (left) or red light passes through the multilayered block and comes out at an angle due to diffraction off of grates on the surface of the material. Light travelling in the opposite direction (right) is almost completely filtered by the metamaterial and can't pass through.
See also www.nist.gov/cnst/light-070114.cfm
Credit: Xu/NIST
National Institute of Standards and Technology posted a photo:
Despite a harsh winter that left the Net-Zero Energy Residential Test Facility's photovoltaic and solar thermal panels covered with snow on 38 days, the energy-efficient house produced more energy than it used over the course of a year.
See also www.nist.gov/el/building_environment/netzero-070114.cfm
Credit: NIST
National Institute of Standards and Technology posted a photo:
Model of crystal plasticity studied at NIST. The goal of this work ultimately is to be able to predict in advance the stress and strain behavior of complex, polycrystalline materials under development.
See also www.nist.gov/mml/mgi-062714.cfm
Credit: Ma/NIST
National Institute of Standards and Technology posted a photo:
Laboratory apparatus for mapping and imaging of radio frequency (RF) electric fields at resolutions below the usual RF wavelength limit. Rubidium atoms are placed in the glass cylinder (on the right), which is illuminated at opposite ends by red and blue laser beams. The cylinder (2.5 by 7.5 centimeters in size) moves left on a track to enable the narrow laser beams to scan its entire width. The antenna (on the left) generates an RF field, which, depending on its frequency, has a certain effect on the spectrum of light absorbed by the atoms. By measuring this effect researchers can calculate and map the RF field strength as a function of position in the cylinder.
See also www.nist.gov/pml/electromagnetics/subwave-061714.cfm
Credit: Holloway/NIST
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Jeremy Tobias Matthews
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