Vapor cells for imaging of electromagnetic fields

A vapor cell, comprising:

• a dielectric body comprising:
• a first surface,
• a second surface opposite the first surface, and
• a plurality of walls extending from the first surface to the second surface, the plurality of walls comprising:
• a perimeter wall surrounding an open volume of the dielectric body, and
• interconnected walls arranged within the open volume to partition the open volume into a plurality of cells, each interconnected wall connected to at least one other interconnected wall, each cell having a first opening defined by the first surface and a second opening defined by the second surface;
• a vapor or a source of the vapor in each of the plurality of cells;
• a first optical window covering the first openings and having a surface bonded to the first surface of the dielectric body to form a seal around each of the first openings;
• and
• a second optical window covering the second openings and having a surface bonded to the second surface of the dielectric body to form a seal around each of the second openings.