Abstract
There are many types of measurements which can be made to characterize a laser’s output. The types of measurements considered in this chapter fall under the broad term of “radiometric;” that is, measurements of a radiometric quantity such as radiant power or radiant energy, irradiance or radiant exposure. The two quantities radiant power and radiant energy are by far the most important and probably more fundamental for laser measurement. The reader should note that the term “radiometric” when applied to a method of measuring power or energy has often been used in a limited sense—referring to the use of instruments calibrated against a radiometric scale derived from a standard blackbody. The contrasting method of measurement under this narrow meaning would be calorimetric measurement where the temperature elevation in an absorber is in itself the final calibration reference. In this chapter the term radiometry is meant to apply to all techniques of measuring optical radiometric quantities such as radiant power or energy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
