More Science and Research Articles

When optically pumped from afar, tiny rhodamine-doped lasing domes serve as remote wall-mounted temperature sensors

07/31/2014 Two researchers at the Microsystems Research Laboratory of Southern Methodist University (Dallas, Texas) have created very small (110-μm-diameter) dome-shaped doped optical resonators that, when optically pumped remotely by a Q...

When costs drop, lidar will be for everyone

07/30/2014 According to an article in the Wall Street Journal, lidar will be the great enabler of new capabilities in cars, including, of course, driverless cars. Price is the largest barrier, with the 64-laser unit 360-degree scanning li...

NIST/Caltech demo first all-optical control on 'comb on a chip' atomic clock

07/30/2014 Researchers from the National Institute of Standards and Technology (NIST; Boulder, CO) and California Institute of Technology (Caltech; Pasadena, CA) have reported the first all-optical control of a silicon-chip-based microres...

Optical transistor enables 20X single-photon amplification for all-optical data processing


With the help of an ultracold quantum gas, scientists at the Max Planck Institute for Quantum Optics achieved a twentyfold amplification of single-photon signals.

NASA MEMS microshutter technology improves, might be used for automotive lidar

07/29/2014 A NASA team led by principal investigator Harvey Moseley, a scientist at NASA's Goddard Space Flight Center (Greenbelt, MD) has demonstrated that electrostatically actuated microshutter arrays are as functional as the current t...

Serial time-encoded amplified microscopy based on multiwavelength laser uses single photodiode for ultrafast imaging


A group at the Institute of Semiconductors, Chinese Academy of Sciences (Beijing, China) has now improved on a pre-existing ultrafast imaging technique called serial time-encoded amplified microscopy (STEAM).

Conference Preview: Strategies in Biophotonics to meld technology development and commercialization themes

07/29/2014 Strategies in Biophotonics is a two-and-a-half-day event that will include keynotes, conference sessions, and an exhibition. Point-of-care medical technology—a burgeoning field that offers potentially huge business opportunitie...

Fiber-optic spectrograph enables Google street view of galaxies


A new instrument based on bundles of optical fibers is giving Australian astronomers the first 'Google street view' of the cosmos--incredibly detailed views of huge numbers of galaxies.

Microscopic laser beam promises no-needle blood draws


NoNeedles Venipuncture is working on addressing the common fear of needles (called trypanophobia) by using laser pulses to painlessly draw blood.

Hooked onto glasses, small optical pupillometer aims to detect diabetic autonomic neuropathy sooner

07/28/2014 A group of Taiwanese researchers has developed a wearable optical pupillometer that can automatically detect an early complication of diabetes (autonomic neuropathy, or damage to the involuntary nervous system) sooner, when it ...

Optical microscopy enables single-molecule motion capture

07/25/2014 A team of researchers has achieved single-molecule imaging and manipulation with optical microscopy using a bead probe as a marker, unveiling fundamental properties such as direction of motion, step size, and the force the mole...

Patterned silica glass layer makes solar cells self-cooling

07/23/2014 Scientists at Stanford University (Palo Alto, CA) have increased the ability of silicon (Si) photovoltaic cells to radiate IR light, and thus heat, away during operation, thus lowering the devices' temperature and increasing li...

Strategies in Biophotonics announces keynote speaker lineup


The impressive keynote speaker lineup for Strategies in Biophotonics includes Robert S. Langer, Greg Olsen, Gregory Altshuler, and Aydogan Ozcan.

Tabletop femtosecond laser system takes movies of acetylene as it isomerizes

07/21/2014 François Légaré's team at the INRS Énergie Matériaux Télécommunications Research Centre Montreal, Quebec, Canada) has taken a high-resolution molecular movie of a chemical reaction with a spatial and temporal resolution greatly...

Lasing plasmon nanocavity sensor detects explosives at the sub-part-per-billion level

07/20/2014 A team of researchers led by Xiang Zhang, professor of mechanical engineering at the University of California, Berkeley, has created a lasing plasmon explosives-sniffing nanosensor that is free of metal losses and operates at a...

Lighting lab setup predicts level of driver discomfort caused by LED streetlights

07/18/2014 A team of researchers from China and the Netherlands has developed a way to evaluate the human impact of uncomfortable glare caused by LED road lighting.

Gigahertz-rate laser oscillator could replace quartz oscillators for wristwatches, other devices

07/18/2014 Researchers in the Caltech laboratory of Kerry Vahala, a Caltech professor, have developed a method to stabilize microwave signals in the gigahertz range using a pair of laser beams as the reference, in lieu of a crystal.

Carnegie Mellon technique reconstructs 3D motion from hundreds of video feeds


Researchers at Carnegie Mellon University have developed techniques for combining the views of 480 video cameras mounted in a two-story geodesic dome to perform large-scale 3D motion reconstruction.

Low-cost phosphorescent OLEDs aim for near-100% efficiency


Jinsang Kim, a professor of materials science and engineering at University of Michigan (Ann Arbor), and his team have developed bright, metal-free phosphorescent OLEDs.

Most Popular Articles

Featured Laser Videos

White Papers

High-power visible spectrum diode lasers for display and medical applications – beam sources with tailored beam quality and spectral characteristics

In this paper we report on the further progress of fiber coupled high power diode lasers in the visible spectral range with regard to beam quality and spectr...

Improve Laser Diode Performance by Reducing Output Cable Inductance using Twisted Pair Cable

The intent of this article is to provide information regarding the performance of twisted pair cable to reduce output cable inductance. The information is ba...

Simultaneous Intensity Profiling of Multiple Laser Beams Using the BladeCam-XHR Camera

Measurement of multiple laser beams can be a time-consuming process. However, parallel processing can significantly reduce the amount of time required for me...

Introduction to scientific InGaAs FPA cameras

Working in the near infrared (NIR) and shortwave infrared (SWIR) regions of the spectrum offers researchers several advantages, such as the abilities to circ...

Technical Digests

There is no current content available.

Financial News

Article Archive

View Laser Focus World past articles now.

Copyright © 2007-2014. PennWell Corporation, Tulsa, OK. All Rights Reserved.PRIVACY POLICY | TERMS AND CONDITIONS