Interferometry with Vortices

<table>Interferogram when the test wave <svg height="16.3125" id="M101" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 20.125 16.3125" width="20.125" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> of Figure <a href="../fig13/#d">13(d)</a> interferes with (a) reference wave <svg height="16.6625" id="M102" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 62.387501 16.6625" width="62.387501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>  (b) reference wave <svg height="16.6625" id="M103" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 99.074997 16.6625" width="99.074997" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>.</table>

International Journal of Optics

Interferometry with Vortices

Figure 15