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ITAR certified and compliant
( www.blender.org) and Unity (https://
unity3d.com). Once imported, the
HoloLens can be used to manipulate
the true 3D image in virtual space using
hand gestures or voice commands, or
be programmed for other forms of user
manipulation and viewing.
“The combination of digital holography and tomographic imaging provides
a powerful method of capturing and
visualizing the complete details of a 3D
object in a virtual reality environment
with no restriction on viewing angles,”
says Paul McManamon of Exciting Technology ( http://excitingtechnology.com)
and research professor at the University of Dayton. “In the future, the point
cloud data from holographic tomography
could also be imported to a 3D printer for
exactly replicating the 3D object.” Similar
3D visualization of DNAs in VR could be
a powerful tool in biological applications.
This work was the topic of a University of Dayton MS thesis by Alex
Downham, who was partly funded
by Protobox (http://protobox.
com)—Protobox kindly provided the
HoloLens that was used for the VR
display.— Gail Overton
1. A. Downham et al., SPIE Optics + Photonics paper 10396-39, San Diego, CA (Aug. 8,
Optogenetics a cornerstone of
DARPA’s neural interface program
The Neural Engineering System Design
(NESD) program, launched in 2016 to facil-
itate precision communication between
the brain and the digital world, has taken
a giant step: In July 2017, its founding
agency, the Defense Advanced Research
Projects Agency (DARPA), awarded $65
million to help realize this idea over the
next four years. Of the six teams chosen to
help create and demonstrate the high-res-
olution neural interface, three are pursuing
optical technologies as part of an implant-
able system that promises a foundation for
future therapies to restore sensory deficits.
And optogenetics features prominently in
each of these.