A He-Ne laser beam is sent through a common path differential interferometer and the interference signal is detected by a p-i-n photodiode. Weak phase objects can be examined because optical path changes can be resolved to 0.1 Å with a time resolution of about 20 ns. Examples for different gas-dynamic investigations show good results and demonstrate the wide field of application for this type of laser interferometer.


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    Title :

    Laser Interferometer for High Sensitivity Measurements on Transient Phase Objects


    Contributors:
    Smeets, G. (author)


    Publication date :

    1972-03-01


    Size :

    1761198 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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