Abstract

In most of the applications of bacteriorhodopsin (bR) including holography, second harmonic generation and optical switch [1-3], the bR is excited in the visible or near UV. In such experiments bR is used in form of thin solid film or suspended in a buffer, typically TRIS. Interestingly enough however, apart from one measurement of the refractive index of a bR film in the visible [4] no information is available on the concentration dependent refractive index of bR especially in the near IR range, where most of the ultrafast lasers operate.

© 2009 IEEE