Fig. 1: Experimental layout.
From: Simulating photosynthetic energy transport on a photonic network
Schematic diagram of (a) the FMO complex (Protein Data Bank accession 3ENI, image of 3BSD58 created with VMD59) and (b) the three-dimensional photonic waveguide array simulating the FMO complex. The numbers of the 7 sites in the FMO complex and their corresponding waveguide are marked. The arrows show that the energy comes into the FMO complex or the waveguide array from Site 6 and moves through Site 3 to the sinks. c The absolute values of the coupling coefficient in the FMO complex of C. tepidum, CFMO (unit: cm−1), according to40,41. In order to map CFMO onto the photonic lattice of a suitable propagation length, Cchip (unit: cm−1), all the coupling coefficients on chip, are proportionally reduced to 14% of CFMO, which only affects the overall evolution time, but not the coupling profile among the seven sites. d (unit: μm) is the center-to-center waveguide spacing between two waveguides. Such d values are set to generate the expected Cchip values above, as Cchip exponentially decays with d, which has been fitted by: C = 47.19 × e−0.2243d. The coupling coefficients between other sites are much weaker (below 15 cm−1), causing very marginal influences on the evolution pattern, and hence are not shown in the table.
