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DTSTART:20140330T030000
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BEGIN:VEVENT
DTSTAMP:20260502T061329Z
UID:50040450d7461@ist.ac.at
DTSTART:20140512T163000
DTEND:20140512T173000
DESCRIPTION:Speaker: Monika Ritsch-Marte\nAbstract: Synthetic Holography\, 
 in the sense that the optical wave?front is shaped by pre?calculated patte
 rns on high?resolution liquid?crystal?based phase modulator panels called 
 Spatial Light Modulators (SLMs)\, is a powerful tool for customizing optic
 al imaging and trapping: Holographic optical tweezers controlled by SLMs h
 ave become an indispensable tool in many areas of cell biology because of 
 their enormous flexibility. But these devices may also be integrated into 
 optical imaging systems\, using them\, for instance\, as a programmable Fo
 urier?filter. Thus one can emulate classic techniques for contrast enhance
 ment\, for instance dark?field microscopy\, Zernike phase contrast\, or sp
 iral phase contrast\, and toggle between these modalities by simply replac
 ing the image displayed on the screen. The approach facilitates correction
 s for optical aberrations induced by the set?up or by the sample itself. A
  further major advantage provided by SLMs is the possibility to multiplex 
 images\, for example to combine images from different depths of the sample
  or for different settings of imaging parameters in one recorded image\, i
 mplementing e.g. quantitative phase microscopy. Finally\, SLM-tailored ill
 umination may also be employed for artifact reduction in linear microscopy
  or for the fine-tuning of phase?matching in nonlinear CARS?microscopy.
LOCATION:Raiffeisen Lecture Hall\, Central Building\, ISTA
ORGANIZER:ihetzenauer@ist.ac.at
SUMMARY:Monika Ritsch-Marte: Institute Colloquium: Shaping up optical imagi
 ng and trapping with synthetic holograp
URL:https://talks-calendar.ista.ac.at/events/512
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