More Test & Measurement Articles

Optical method can detect proteins by their scattered light

09/15/2014 A team of researchers has developed an optical method that enables direct detection of the scattered light of individual proteins via their shadows to not only make biomedical diagnoses more sensitive, but also provide new insi...

Expanding service options, Nanophase opens new polishing applications support lab

09/09/2014 Nanophase Technologies Corp. (Romeoville, IL) has opened a new polishing laboratory that will enable new product development and provide customer application support and process simulation for a variety of optical and precision...

Business Forum: A society for the optical science ecosystem

09/09/2014 This is the fourth in a series of interviews with leaders of our professional societies. I interviewed Liz Rogan, CEO of The Optical Society  (OSA), because this professional society is a vital part of our industry’s infra...

Nanometrology: Plasmon rulers: The optical angstrometers


Evolving nanofabrication techniques suggest that plasmon rulers can potentially serve as easy-to-use optical "angstrometers".

Spectroscopy: High-resolution spectrometers shrink down with SWIFTS


SWIFTS is a new principle of spectroscopy that can be implemented in an integrated chip, delivering picometer resolution over a spectral range of several hundred nanometers.

Photonics Products: Photodiodes: Silicon low-light photodiodes don't miss a photon


Avalanche photodiodes, silicon photomultipliers, and their variants serve low-light-detection needs, even counting single photons when needed.

Market Insights: Entering the Chinese photonics market


Over the past few decades, I have helped found companies in many parts of the world, including Taiwan, Japan, and China.

Long on the cutting edge

09/08/2014 When talking about advanced manufacturing, politicians seem to be thinking of futuristic factories or half-understood new systems. Conversely, when the industrial laser community talks about advanced manufacturing, it's talking...

Ophthalmology: Optical-integration instrument measures intraocular stray light


Researchers have come up with a simple ophthalmic instrument based on double-pass optical integration, which measures ocular stray light at angles between 3° and 8° and is suitable for use in a clinical setting.

Raman Spectrometers: Low-cost Raman spectrometer uses concave grating and CMOS SPAD

09/05/2014 By focusing on miniaturization and suppression of fluorescence using a concave grating and a complementary metal-oxide semiconductor (CMOS)-based time-gated single-photon avalanche diode (TG-SPAD) detector, a team of researcher...

Remote Sensing: Optically pumped lasing domes serve as remote temperature sensors

09/05/2014 Two researchers have created very small (110-μm-diameter) dome-shaped doped optical resonators that, when optically pumped remotely by a Q-switched Nd:YAG laser, lase and emit a comb spectrum that shifts depending on the temper...
Whispering-gallery Raman laser sensors detect individual nanoparticles

Whispering-gallery Raman laser sensors detect individual nanoparticles

09/04/2014 A team of researchers at Washington University in St. Louis (St. Louis, MO), led by Lan Yang, the Das Family Career Development Associate Professor in Electrical & Systems Engineering, and their collaborators at Tsinghua Un...

Terahertz reflectometry identifies early skin cancer

09/03/2014 Applied Research & Photonics (ARP) is applying its terahertz-reflectometry systems—which have also been used for multilayer paint-thickness analysis and fault detection in silicon chips—to the identification of early-stage ...
Quantum-key distribution goes to market in LANL tech transfer agreement with Allied Minds

Quantum-key distribution goes to market in LANL tech transfer agreement with Allied Minds

09/02/2014 Los Alamos National Laboratory (LANL; Los Alamos, NM) has signed its largest information technology agreement ever; the agreement, with Whitewood Encryption Systems (Boston, MA; a wholly owned subsidiary of Allied Mind) provide...

Pyrocam IV images laser beams to terahertz range


The new, fourth-generation Pyrocam IV pyroelectric camera adds greater sensitivity, better resolution, a larger active area, and more compact packaging to address next-generation laser source requirements.

Mahr Federal video microscope provides automatic edge detection


The MarVision MM 320 video measuring microscope is designed for measurement and/or dimensioning of geometric elements.

Quantum cascade laser may lead to prickless blood sugar monitoring


A team of researchers at Princeton University has developed a way to use a quantum cascade laser (QCL) to measure blood sugar noninvasively.

NDIR gas measurement module from Electro-Optical Components features a a two-channel thermopile detector


A high-temperature gas measurement module that can operate up to 190°C is based on the non-dispersive infrared (NDIR) principle.

Glucose meter incorporates photonic crystal to help provide continuous monitoring


University of Illinois researchers have developed a continuous glucose-monitoring material that changes color as glucose levels fluctuate, with super-presise wavelength shift.

Zeiss automated digital microscope performs failure analysis


The Smartzoom 5 automated digital microscope comprises an optical engine (zoom, camera, and illumination), a stand with sample stage, objective lenses, the operating unit, and software.

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Ultra-narrowband optical bandpass filters with large format and improved temperature stability

Hard coated ultra-narrowband optical filters made using modern plasma processes offer much improved transmission, temperature stability and out of band block...

Moxtek ICE Cube™ polarizing beamsplitter

The Moxtek ICE CubeTM polarizing beamsplitter (PBS) product performance is compared to a MacNeille PBS cube.  Cube beamsplitters are found in a variety ...

Actuator Precision Characterization

Zaber’s computer-controlled positioning devices use stepper motors, which allow accurate position control without requiring an encoder. In order to get the b...

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...

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