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New Method Uses Gold Nanoparticle Optical Sensors and Bacteria to Detect Heavy Metals in Water

People often associate Escherichia coli with contaminated food, but E. coli has long been a workhorse in biotechnology. Scientists at the University of California, Irvine have demonstrated that the bacterium has further value as part of a system to detect heavy metal contamination in water.

24 Feb 2023

Scientists Show How to Encode Secrets with Color

Plasmonic nanorods respond differently to light waves that move in the same direction, called polarized light. Depending on how they are positioned and how the light waves are polarized, a chiral response can occur.

16 Feb 2023

The Shortest Electron Pulse On Record Has Been Measured

In a recent article published in the journal Nature, researchers use intense, sub-cycle light transients to generate optical field emission of electron pulses from tungsten nanotips to directly analyze the emission kinetics in real time.

1 Feb 2023

Novel 2D Surface Nanostructures Created With Femtosecond Laser

In a paper published in the International Journal of Extreme Manufacturing, it was demonstrated that GHz burst mode femtosecond laser pulses could be used to create unique two-dimensional (2D) laser-induced periodic surface structures on silicon.

1 Feb 2023

BluGlass Launches Six Laser Products at Photonics West

Global semiconductor developer BluGlass Limited has launched its first suite of gallium nitride (GaN) laser products for customer purchase at leading industry conference, SPIE Photonics West, in San Francisco, USA.

From BluGlass 30 Jan 2023

Columbia Researchers Invent the First Tunable and Narrow Linewidth Chip-Scale Lasers

As technologies keep advancing at exponential rates and demand for new devices rises accordingly, miniaturizing systems into chips has become increasingly important. Microelectronics has changed the way we manipulate electricity, enabling sophisticated electronic products that are now an essential part of our daily lives.

5 Jan 2023

Unleashing the Power of Photonics – A Digital Tech Talk Event

Following the successful Laser Materials Processing and Semiconductor digital events, PI is hosting a new tech-talk live streaming event on the topic of “Unleashing the Power of Photonics”, with speakers from EPIC, CITC, MPI Corporation, Transcelestial, and PI.

From PI (Physik Instrumente) LP 18 Nov 2022