More Test & Measurement Articles

Testing Detectors: Understanding key parameters of silicon photomultipliers

11/04/2014 Silicon photomultiplier users can expand on basic operating principles by understanding methods that experimentally determine key parameters of this detector such as gain, photon detection efficiency, and prevalence of noise.

Micro-patterned bull’s-eye improves SERS sensitivity

11/04/2014 To maximize the number of molecules delivered to the detection area of a substrate when performing surface-enhanced Raman spectroscopy (SERS), a team of researchers has developed a micropatterned bull’s-eye structure that uses ...

FBG sensor wavelength interrogator is simple, low cost


A simple, integrated system for wavelength interrogation of fiber Bragg grating (FBG) sensors has been developed by a researchers at the U. of Alberta.

Photon Sensorama

11/03/2014 The Sensorama Simulator was patented by Morton Heilig in 1962 as one of his inventions to expand the art of the cinema. In this early virtual-reality experience, viewers peered into a box to watch a 3D movie while their other s...

Ion image sensor diagnoses Alzheimer’s and diabetes


Researchers in Japan have developed an alternative potassium-ion-sensitive image sensor using intensified charge-coupled device (iCCD) technology that can diagnose early stage diabetes and even Alzheimer’s disease.

NIST launches new calibration service for high-power lasers up to 10 kW

NIST launches new calibration service for high-power lasers up to 10 kW

10/30/2014 The Quantum Electronics and Photonics Division of the National Institute of Standards and Technology (NIST; Boulder, CO) has launched a new calibration service for high-power lasers such as those used in industry for materials ...

Thorlabs acquires Corning's quantum cascade laser business


Photonics products manufacturer Thorlabs acquired Corning Incorporated's quantum cascade laser (QCL) business and associated optical semiconductor technologies research group in a private transaction.

Ultrahigh-reliability high-power VCSEL array for 3D sensing and gesture recognition unveiled by Princeton Optronics

Ultrahigh-reliability high-power VCSEL array for 3D sensing and gesture recognition unveiled by Princeton Optronics


Vertical-cavity surface-emitting laser (VCSEL) specialist Princeton Optronics has introduced a high-power 8-W VCSEL array for 3D sensing and illumination.

Safety of blue-light content of white-light LEDs discussed in new DOE technical brief

Safety of blue-light content of white-light LEDs discussed in new DOE technical brief


In a new brief, the U.S. Department of Energy (DOE) has set out to clear up what it believes are misconceptions about LED lighting, in particular those that relate to the blue-light content of white-light LEDs.

NASA takes thermal-imaging video of SpaceX in powered descent, info to help with future Mars landings

NASA takes thermal-imaging video of SpaceX in powered descent, info to help with future Mars landings


NASA captured thermal images of a SpaceX Falcon 9 rocket on its descent after it launched in September, 2014 from Cape Canaveral Air Force Station in Florida.

3D laser time-of-flight imager uses adaptive MEMS to shift its 'attention' to different objects

3D laser time-of-flight imager uses adaptive MEMS to shift its 'attention' to different objects


Researchers at the three institutes of the Fraunhofer-Gesellschaft in Germany have combined laser time-of-flight (TOF) measurement and an adaptive MEMS microreflector component into a novel laser-scanning system.

Theranostic fluorescent nanoparticles identify and destroy ovarian cancer cells


Theranostic research that describes a fluorescence technique for identifying and destroying ovarian cancer cells was selected as Editor's Choice for the September 2014 issue of Lasers in Surgery and Medicine (LSM).

Ocean and sea ice research project to use Headwall hyperspectral sensors


Spectral sensing and imaging company Headwall Photonics delivered two high-performance hyperspectral imaging sensors to Columbia University as part of its Air-Se a-Ice Physics and Biogeochemistry Experiment.

Biophotonics innovators amongst Edmund Optics' 2014 Education Award winners

10/15/2014 Optical components maker Edmund Optics has named the recipients of its 2014 Educational Award program—an award given in recognition of outstanding undergraduate and graduate optics programs in science, technology, engineering, ...

Ways to celebrate IYL 2015


With 2015 fast approaching, I'm disappointed that I don't have anything specifically lined up related to the event, so I thought I'd do a little research and find out what's on tap for IYL2015.

Gold nanoparticles, laser light pair to measure mucus


Researchers at the University of North Carolina at Chapel Hill (UNC) have developed a way to use gold nanoparticles and laser light to measure the stickiness of the mucus that lines the airway.

Osram launches LED-based fitness-monitoring sensor


Osram Opto Semiconductors has launched the SFH 7050--its first integrated optical sensor for automatic fitness tracking.

Laser-induced Breakdown Spectroscopy: Compact industrial LIBS systems can assist aluminum recycling


Industrial laser processes based on laser induced breakdown spectroscopy (LIBS), including scrap-aluminum sorting for recycling, can benefit from the use of compact, high-repetition-rate diode-pumped solid-state lasers.

Photonics Applied: Optical Sensing: OPO-based optical analyzer monitors multiple gases in real time


A new gas analyzer based on a compact doubly resonant optical parametric oscillator pumped by a pulsed laser can monitor multiple gases in real time with a very wide dynamic range at ppb levels.

Diversity drives photonics


In September I attended two conferences that re-emphasized the great range of applications and industries benefiting from photonics.

Featured Laser Videos


Lens Design – Tools for designing manufacturable aspheres for complex optical assemblies

Designing aspheres that may be successfully fabricated and tested can be a frustrating experience. The range of possible aspheres is much larger than the ran...

Laser Measurements Critical to Successful Additive Manufacturing Processes

Maximizing the stability of the variables going into any manufacturing process is what ensures ts consistency and high quality. Specifically, when a laser is...

Handheld Spectrometers

Spectroscopy is a powerful and versatile tool that traditionally often required a large and bulky instrument. The combination of compact optics and modern pa...

Femtosecond Lasers – Getting the Photons to the Work Area

Ultrashort-pulse lasers, both picosecond and femtosecond, are now available from a large number of manufacturers, with new players entering the field at a ra...

Ray Optics Simulations with COMSOL Multiphysics

The Ray Optics Module can be used to simulate electromagnetic wave propagation when the wavelength is much smaller than the smallest geometric entity in the ...

Multichannel Spectroscopy: Technology and Applications

This webcast, sponsored by Hamamatsu, highlights some of the photonic technology used in spectroscopy, and the resulting applications.

White Papers

DRS Technologies’ Patented Sensor Technology Revealed

Learn the truth about what’s behind DRS Technologies’ competitive advantage over thermal sensor manufacturers – the patented Advanced-Absorber Microbolometer...

NIST Traceable Spectral Responsivity Calibration of Photodiode Detectors

All Newport optical detectors are recommended for a 12 month recalibration interval. Newport maintains an advanced calibration facility to meet all of your N...

All About Aspheric Lenses

The most notable benefit of aspheric lenses is their ability to correct for spherical aberration. Spherical aberration results from using a spherical surface...

Accurate LED Source Modeling Using TracePro

Modern optical modeling programs allow product design engineers to create, analyze, and optimize LED sources and LED optical systems as a virtual prototype p...

Tailored bar concepts for 10 mm-mrad fiber coupled modules scalable to kW-class direct diode lasers

In this paper, laser modules based on newly developed tailored bars are presented. The modules allow efficient fiber coupling of more than 320 W into 10 mm-m...

Technical Digests

OPTICAL COATINGS: Evolving technology produces new benefits

The antireflection, high-reflection, and/or spectral characteristics provided by optical coatings are an essential component of virtually all high-performanc...

REMOTE FIBER-OPTIC SENSING: Data in abundance from difficult environments

The use of optical fibers to measure strain, temperature, and other parameters at desired points distributed anywhere along a length of fiber opens up new te...

SCANNERS FOR MATERIALS PROCESSING: Serving demanding applications

Galvanometer-based scanners are an essential component in laser-based materials-processing systems; scanners are what do the work required to precisely shape...

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