Test & Measurement

The laserfocusworld.com Test & Measurement channel features articles and other content that discuss components and systems to quantify photonics.

Recent

Test & Measurement

Velocity measurement system stores up to 9,000 measurements

Specialised Imaging Inc

Feb. 27, 2025

Test & Measurement

Raman analyzer offers advanced data algorithms

Metrohm USA

Feb. 19, 2025

Test & Measurement

Industrial power meter has use in Li-ion battery welding

Ophir, an MKS Instruments Brand

Jan. 30, 2025

Test & Measurement

Raman spectrometer available with various detector options

Ibsen Photonics A/S

Jan. 26, 2025

Semiconductor detector materials

Magnetically levitated turbomolecular pumps for coating, research and industry

Edwards Vacuum Inc

Jan. 23, 2025

Test & Measurement

High-power laser sensor features 55-mm aperture

Ophir, an MKS Instruments Brand

Jan. 20, 2025

Highlights

Natalie Fardian-Melamed in the lab working on a combo scanning probe—an inverted-optical microscope to explore single photon avalanching nanocrystal mechano-optics and photophysics. (Photo credit: William P.D. Hayes/Columbia Engineering)

Test & Measurement

All-optical nanoscale sensor of force changes intensity when pushed or pulled

Sally Cole Johnson

Feb. 27, 2025

Researchers discover photon avalanching nanoparticles are supersensitive to mechanical force—and nanosensors they went on to create are poised to redefine what’s possible in terms...

Lead researchers Dr. Song Wang (left), a research scientist at SMART DiSTAP, and Dr. Yangyang Han (right), a senior postdoctoral associate at SMART DiSTAP.

Bio&Life Sciences

First-of-its-kind chromatic sensor detects plant distress

Justine Murphy

Feb. 17, 2025

It’s not always easy to tell if a plant is dehydrated, and sometimes it’s too late to save it. But a sensor designed by an international team of scientists detects distress in...

lfw_ftpmateja_lampe_rupnikgraphiclandscape

Podcasts

PODCAST: Interview with Mateja Lampe Rupnik, Red Pitaya

Justine Murphy

Feb. 4, 2025

Episode 37 of Following the Photons: A Photonics Podcast features Mateja Lampe Rupnik, CEO at Red Pitaya. The company specializes in high-performance, open-source hardware instruments...

FIGURE 1. Time-of-flight (left): Blooming after treatment shows points removed near retro reflective vs. FMCW (right): No treatment; the raw data point shows no blooming impact.

Test & Measurement

The battle of LiDAR sensor technologies: FMCW vs. ToF

Clement Kong

Jan. 17, 2025

Among the various light detection and ranging (LiDAR) technologies, frequency-modulated continuous-wave (FMCW) LiDAR has emerged as a powerful alternative to time-of-flight (ToF...