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Michael Feinberg is the Director of Product Marketing at Boston Micromachines Corporation.  He has over 10 years of marketing and engineering experience in various technology fields.  He can be reached at mrf@bostonmicromachines.com  and welcomes any comments about the content presented herein.

 

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Adaptive Optics Correcting for Highly Scattering Media: A New Approach

Posted by Angelica Perrone on Thu, May 15, 2014 @ 11:05 AM
  
  
  
  
  

Scattering media can be a real headache if you are looking to achieve high-resolution, deep tissue in vivo images. Without adaptive optics, do not anticipate having the optical control you need to correct for scattering media effectively. But no need to worry, we have a solution.test bed S MPM resized 600

Since standard Multiphoton Microscopy just wasn’t cutting it, the Cui Lab at Howard Hughes Medical Center pioneered a new technique that Boston University also recently developed, called Superpentation Multi-Photon Microscopy (S-MPM). Each group uses a different optimization scheme but the outcome is the same: The enhanced technique permits active compensation of wavefront aberrations in a scanning beam path through the use of a BMC MEMS Spatial Light Modulator (SLM), allowing for increased depth imaging.

Developed at Boston University and commercialized by Boston Micromachines, the enabling components are the Kilo-SLM and the high speed S-driver. With these components incorporated into the test bed shown in Fig. 1, images of 1 µm diameter fluorescent beads through 280 µm thick mouse skull can be achieved at depths of about 500 µm. The SLM corrected low order spherical aberrations as well as higher order scattering effects. Signal enhancement with higher resolution and contrast were improved by 10x-100x. The optimized SLM phase improves imaging over a field of view of 10-20 µm for samples tested to date with techniques currently in the works to improve upon this.

With 600 nm of stroke and 60 kHz of maximum frame rate, the Kilo-S System comes in a variety of options to fit your needs at a much reduced cost over our standard 1000 channel system. Contact us today for more information on our Kilo-S or any of our other systems! 

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