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SUMMARY:IGM Colloquium :The Image Forming Mirror in the Eye of the Scallop
DTSTART:20171024T121500
DTEND:20171024T131500
DTSTAMP:20261005T001415Z
UID:3e8947f1aee4cc0bf257d0b160c8f68878dc1dcaeceddda6d49e21b4
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr.Benjamin Palmer\n\nOrganic crystals are found in many photo
 nic systems in nature\, where they are used to produce an extraordinary ar
 ray of optical phenomena from the white color in certain spiders\, to the 
 silvery reflectance of fish scales and the brilliant iridescent colors of 
 planktonic crustaceans and tropical fish. Organisms are able to manipulate
  the optical properties of such systems "simply" by varying the size\, mor
 phology and arrangement of the crystals. Here we discuss how optically-fun
 ctional organic crystals are used to produce images in two of Nature’s m
 ost spectacular visual systems – the eyes of scallops and shrimp.\n\nSho
 rt Bio\n\nDr. Benjamin Palmer studied chemistry as an undergraduate in Car
 diff University and continued there for a PhD with Prof. Kenneth Harris. D
 r. Palmer’s PhD focused on fundamental studies of the interaction of pol
 arized X-rays with materials (the phenomena of X-ray birefringence and X-r
 ay dichroism). This work led to the development of the X-ray Birefringence
  Imaging (XBI) technique. Following a short postdoc in Swansea University 
 he moved to the Weizmann Institute in 2014. From 2014 to 2015 he was a Dea
 n of Faculty and Koshland Prize Fellow\, followed by a Cross-Disciplinary 
 Human Frontiers Fellowship. Dr. Palmer is currently interested in how orga
 nisms make and use organic crystals to manipulate light for different opti
 cal functions (the field of ‘organic biomineralization’)\, with a part
 icular focus on visual systems based on reflective rather than refractive 
 optics\n 
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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