Table 1.

Lateral positions of selected colors observed experimentally (r_meas) and calculated from the diffraction-grating equation (r_calc) for 3D photonic balls and monolayer-on-microsphere architecture (both from 610-nm colloids)

D.O.	λ, nm	rcalc/rball	rmeas/rball	Discrepancy, %
Photonic balls (dcoll = 610 nm)
1	400	0.33	0.30 ± 0.03	9.7
	550	0.45	0.46 ± 0.04	3.0
	750	0.61	0.69 ± 0.05	13.7
2	400	0.66	0.62 ± 0.04	5.0
	550	0.90	0.81 ± 0.05	10.5
Monolayer-on-microbead architecture (dcoll = 610 nm)
1	400	0.33	0.27 ± 0.01	16.3
	550	0.45	0.45 ± 0.04	0.7
	750	0.61	0.73 ± 0.03	19.3
2	400	0.66	0.65 ± 0.02	1.4
	550	0.90	0.81 ± 0.05	10.8

Data are presented as fractions of the ball radius r_ball for the different diffraction orders (D.O.).