@article{(Open Science Index):https://publications.waset.org/pdf/4809,
	  title     = {Broad-Band Chiral Reflectors based on Nano-Structured Biological Materials},
	  author    = {D.J. Brink and  N.G. van der Berg and  L.C. Prinsloo and  A. Botha},
	  country	= {},
	  institution	= {},
	  abstract     = {In this work we study the reflection of circularly
polarised light from a nano-structured biological material found in
the exocuticle of scarabus beetles. This material is made of a stack
of ultra-thin (~5 nm) uniaxial layers arranged in a left-handed
helicoidal stack, which resonantly reflects circularly polarized light.
A chirp in the layer thickness combined with a finite absorption
coefficient produce a broad smooth reflectance spectrum. By
comparing model calculations and electron microscopy with
measured spectra we can explain our observations and quantify most
relevant structural parameters.},
	    journal   = {International Journal of Physical and Mathematical Sciences},
	  volume    = {3},
	  number    = {9},
	  year      = {2009},
	  pages     = {603 - 607},
	  ee        = {https://publications.waset.org/pdf/4809},
	  url   	= {https://publications.waset.org/vol/33},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 33, 2009},