Design and Fabrication of Diffractive Light-Collecting Microoptical Device with 1D and 2D Lamellar Grating Structures

Figure 4

The estimated diffraction angles of 1D and 2D DOEs; (a) θ ±1st = ±12.6° for 1D, (b) θ ±1st = ±17.7° for 2D.

(a)

(b)