Dynamic self-pumped phase-conjugating mirror based on the bacteriorhodopsin variant D96N.
A self-pumped, phase-conjugating mirror (diameter 17 mm) is described that contains the bacteriorhodopsin variant D96N as the photoactive material. Resonant reflectivities up to 30% were obtained with an intensity of 25 mW/cm(2) at 647 nm. Rise times of less than 1 ms were observed with an intensity of 500 mW/cm(2) at 532 nm. Wave-front restoration with spatial light modulators as the dynamic input device was demonstrated, and the dependence of the reflectivity on the intensity and polarization was analyzed. The reflectivity shows no significant decrease with increasing angle between the pump and signal beams as a result of the high resolution of the bacteriorhodopsin films.
Zeisel
D
D
Hampp
N
N