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Cerium LiSAF and Cerium LiCAF Lasers – Properties and Applications

Cerium is the simplest rare earth metal known. The Ce:LiSAF and Ce:LiCAF lasers are categorised as UV diode lasers.

25 Apr 2014

Promethium Doped Phosphate Glass Lasers – Properties and Applications

Phosphate glass lasers are glass materials that are based on phosphorus pentoxide (P2O5) along with added chemicals. They are used as the gain medium in optical and bulk lasers.

25 Apr 2014

Aluminum Gallium Arsenide Lasers – Properties and Applications

The aluminium gallium arsenide laser is a diode laser, having similar characteristics as that of aluminium gallium indium phosphide laser. The structure of AlGaAs is the same as gallium arsenide, but with a larger band gap.

25 Apr 2014

Gallium Indium Arsenic Antimony Lasers – Properties and Applications

The gallium indium arsenic antimony lasers are diode lasers that emit infrared wavelengths. These laser diodes are important sources of lasers that generate wavelengths more than 2 µm.

25 Apr 2014

What is a Photon Detector?

Photon or Quantum detectors generate a single response element for a single photon in response to the incoming photon flux. They respond in a quantized manner. Insufficiencies of response need to be accounted for, as it is hard to find perfect conditions in nature.

From Oriel Instruments 22 Apr 2014

Celebrating 20 Years of Innovation in Spectroscopy

In this interview, Benno Oderkerk, CEO of Avantes, talks to AZoOptics about the last 20 years of innovation at Avantes and their plans for the future.

From Avantes BV 8 Apr 2014

Coma – Definition and Causes of Comatic Optical Aberration

Optical aberrations are deviations from geometric optics that are mainly caused by faults in optical lenses.

12 Feb 2014

Sagnac Interferometer - Definition and Applications

The Sagnac interferometer uses counter-propagating beams in a ring path. This is realized by either using multiple mirrors or with an optical fiber. Generally, three or more mirrors are used, so that the counter-propagating light beams follow a closed path such as a triangle or square.

12 Feb 2014

Gain Medium - Definition and Use in Laser Construction

Gain medium is a quantum system that amplifies laser beams by means of stimulated emission.

12 Feb 2014

Spectrograph - Definition and Use

A spectrograph is a device that separates the incident light from an object into a frequency spectrum and measures the amount of radiation at each wavelength.

12 Feb 2014