Figure 10From: Angular shaping of fluorescence from synthetic opal-based photonic crystal Fluorescence spectra of photonic glass (a) and soda lime glass slab (b), measured at different angles. (1) 0°; (2) 40°; (3) 50°; (4) 60°; (5) 70°. The inset depicts total internal reflection of light at high angles.Back to article page