January 03, 2023 We typically think of the ocean’s color as blue, but in some places, it looks blue-green. That’s because those areas are teeming with single-cell plants called phytoplankton, which contain chlorophyll and reflect […]
An improvement to a Nobel Prize-winning technology called a frequency comb enables it to measure light pulse arrival times with greater sensitivity than was previously possible — potentially improving measurements of distance along with applications […]
The optical cavity consists of two ultra-high-reflectivity mirrors (reflectivity > 99.995 %) that are suspended from two electromagnetic force-compensation balances. The visible laser beam is reflected 21 times between the mirrors. Source: Photon momentum for […]
June 24, 2021 Conventional microscopes provide essential information about samples in two dimensions — the plane of the microscope slide. But flat is not all that. In many instances, information about the object in the […]
You’re going at the speed limit down a two-lane road when a car barrels out of a driveway on your right. You slam on the brakes, and within a fraction of a second of the […]
by David Mendoza Volume 16:4, Oct-Dec 2009 The errors associated with the calibration of broad band UV meters based on the light source used during calibration are well documented but appear to not be very […]
January 31, 2020 – Ottawa, Ontario – National Research Council of Canada Business leaders, researchers, and students today celebrated the launch of the Joint Centre for Extreme Photonics (JCEP) in Ottawa. Established by the National […]
May 22, 2018, NIST News – Over the last two decades, scientists have discovered that the optical microscope can be used to detect, track and image objects much smaller than their traditional limit—about half the […]
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