Characterized by large aperture and long focal length, the reflective optical system has the advantages of small number of optical elements and simple optical structure. But the intrinsic aberration and the misalignment derived ...
Optics & Photonics
Jan 18, 2022
0
236
(Phys.org) —Light traveling in a vacuum is the Universe's ultimate speed demon, racing along at approximately 300,000 kilometers per second. Now scientists have found an effective new way to put a speed bump in light's ...
Optics & Photonics
Aug 13, 2013
0
1
Scientists from the FOM Foundation, the University of Twente and at the Institute for Nanoscience and Cryogenics in France have shown that light sources which usually emit light randomly can be coaxed to emit an ultrashort ...
Optics & Photonics
Sep 26, 2013
0
1
(PhysOrg.com) -- Physicists Praveen Ashok, Bavishna Praveen, and K. Dholakia working together at the University of St Andrews in Scotland have developed a method for testing whiskey for authenticity using a crafted device ...
A new optical device puts the power to detect eye disease in the palm of a hand. The tool—about the size of a hand-held video camera—scans a patient's entire retina in seconds and could aid primary care physicians in ...
Optics & Photonics
Dec 20, 2013
1
0
(Phys.org)—Digital cameras, medical scanners, and other imaging technologies have advanced considerably during the past decade. Continuing this pace of innovation, an Austrian research team has developed an entirely new ...
Optics & Photonics
Feb 20, 2013
2
1
You can check a person’s vital signs -- pulse, respiration and blood pressure -- manually or by attaching sensors to the body. But a student in the Harvard-MIT Health Sciences and Technology program is working on a system ...
Engineering
Oct 4, 2010
3
0
(PhysOrg.com) -- We could soon see the potential of laser technology expand dramatically.
Optics & Photonics
Jul 28, 2009
2
0
Drawing heavily upon nature for inspiration, a team of researchers has created a new artificial lens that is nearly identical to the natural lens of the human eye. This innovative lens, which is made up of thousands of nanoscale ...
Optics & Photonics
Nov 13, 2012
2
1
In the latest twist on optical knots, New York University physicists have discovered a new method to create extended and knotted optical traps in three dimensions. This method, which the NYU scientists describe in the Optical ...
Optics & Photonics
Mar 15, 2011
0
0
