Author | Steve Buckley

Articles

The Rise of the Upconversion Materials

January 01, 2020

Spectroscopy

Article

An important class of nanoparticles made of “upconversion” materials has found a central role in sensing. These nanoparticles are used to convert longer-wavelength photons into shorter-wavelength fluorescence to detect temperature, pH, gas molecules, ions, and trace biomolecules.

Advances in the Applications of Lasers for Bioimaging: Light Sheet Microscopy

October 01, 2019

Spectroscopy

Article

Lasers allow advances for investigation of biological samples. Discussed here are some of the most interesting recent developments in light sheet microscopy for bioimaging, including a technique that allows for unique viewing of large, intact samples including biopsies.

Expert Perspectives on Laser-Induced Breakdown Spectroscopy (LIBS)

April 01, 2019

Spectroscopy

Article

LIBS has transitioned from a method found only in research laboratories, to a technique in wide use in commercial settings. Several leading LIBS experts share their views on how the technique has developed and where it is heading.

Broadband High-Brightness Sources for Spectroscopy

January 01, 2019

Spectroscopy

Article

n the near past, discharge lamps, dye lasers, and optical parametric oscillators were the only useful sources for spectroscopy. New broadband sources, such as supercontinuum lasers, laser-driven plasma sources, and high-brightness light-emitting diodes (LEDs), are now available. We look at what these options offer for spectroscopy.