Abstract: An alkali metal vapor enclosure comprising: an internal surface comprising nanostructures; a transmissive portion to enable the internal surface to be illuminated; wherein the enclosure contains atoms of an alkali metal which are in a vapor state and/or adsorbed onto the internal surface; and wherein illumination of the internal surface via the transmissive portion with light having a frequency to cause a temperature rise in the nanostructures by exciting an enhanced optical extinction mechanism in the nanostructures, causes an increase in the density of the alkali metal vapor.

Abstract: The subject matter described herein includes methods, systems, and computer readable media for producing realistic camera motion for stop motion animation. One method includes moving an object in a first space, wherein at least a portion of the movement is effected by human or other living organism. The method further includes tracking motion of the object as the object is moved in the first space and generating corresponding tracked motion data. The method further includes generating, using the tracked motion data, robot control information for controlling a robot to move a physical stop motion animation camera in a stop motion animation set. The method further includes controlling, using the robot control information, the robot to move the stop motion animation camera in the stop motion animation set.