Obviously the wavelength of a laser can’t be measured with a scale as large as that of a carpenter’s tape measure. At least not directly and that’s where a Compact Disc comes in. [Styropyro] uses a CD ...

The new 828B Optical Wavelength Meter measures absolute wavelength at a rate of 1 kHz VICTOR, NEW YORK August 26, 2015 – Bristol Instruments, Inc., the leader in laser wavelength measurement ...

The newest model of the 871 Laser Wavelength Meter measures the absolute wavelength of pulsed and CW lasers with a reliable accuracy as high as ± 0.2 parts per million, making it the ideal instrument ...

The need of highly accurate wavelength measurements necessitates calibration and long-term stability in the measuring instrument. For precise, continuous wavelength measurement, a continuous reference ...

How do you test the oscillator circuit you just made that runs between 200MHz and 380MHz if all you have is a 100MHz oscilloscope, a few multimeters and a DC power supply? One answer is to put away ...

Spectroscopy, in its broadest sense, is the term given to the investigation and measurement of spectra produced when a substance interacts with or emits electromagnetic radiation. All known matter ...

The Hamamatsu Picosecond fluorescence lifetime measurement system has been developed in response to the requirements of researchers studying such materials. The use of a "streak camera", an optical ...

In the last few weeks I've been working on a slightly more formal version of this post on black-body radiation for use in something else. One of the tricky things in writing about the development of ...

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

Editor’s note: This article will be in two parts. Part 1 is component-related and Part 2 is applications. Please also see Planet Analog blog “LEDs Are Photodiodes Too” as an intro to this article.