Visual demonstration of the performance of the diffraction grating. (IMAGE)

SPIE--International Society for Optics and Photonics

Visual demonstration of the performance of the diffraction grating.

Caption

Visual demonstration of the performance of the diffraction grating. The zeroth order transmission refers to light that goes straight through the grating without undergoing diffraction (which should be minimized), whereas the first order transmission refers to the first diffraction peak for each frequency of light. (b) Diffraction efficiency of the gratings for first order transmission (orange) and zeroth order transmission (cyan). Worth noting, the first order diffraction efficiency of the grating was over 70% for a wide wavelength range spanning more than 200 nm.

Credit

The Authors, doi 10.1117/1.JATIS.8.4.045002

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