Physics - Optics & Photonics news

Through a Sensor, Holographically

(PhysOrg.com) -- The power and resolution of lens-based optical microscopes have improved by orders of magnitude since their invention around 1595. Nevertheless, relying on a high-magnification lens for image ...

Apr 26, 2011 feature
4.2 / 5 (5) 1 | with audio podcast

Creating light sources for nanochips

(PhysOrg.com) -- "One of the most important goals in the optics community is to create and manipulate light on chip," Yinan Zhang tells PhysOrg.com. "This is especially important when it comes to improving the performance of sem ...

Aug 25, 2010 feature
4.3 / 5 (9) 0 | with audio podcast

Building a more versatile laser

(PhysOrg.com) -- One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. ...

Nov 16, 2009 feature
4.5 / 5 (19) 0

Quantum dots as midinfrared emitters

(PhysOrg.com) -- “People are interested in the mid-infrared,” Dan Wasserman tells PhysOrg.com. Infrared light has a wavelength longer than visible light, and many molecules have numerous very strong optical resonances in the ...

Feb 23, 2009 feature
4.1 / 5 (10) 1