Open source optical lattice clock
POV-Ray, 512 characters
Here's my try. I didn't manage to replicate the lighting, so I've decided to keep the variation of highlight positions rather than to put the lights further away to keep the background brighter.
The area shadow is rather low-quality. I might as well turn it off completely (and save precious characters), but if someone is willing to donate some computing power and crank up the shadow quality and/or the dither quality, I'll gladly accept.
#include&quot;functions.inc&quot;       
camera{location&lt;-3,5,-6&gt;right x look_at 0 focal_point 0 aperture 1 blur_samples 9}  
#macro s(p)sphere{pi*p+y/3 1 pigment{rgb&lt;2,8,2&gt;/9}finish{phong .5 phong_size 5 specular 1 roughness .001}}#end
#macro l(p,c)light_source{p c/8 area_light 9*x,9*z,3,3}#end l(&lt;6,6,0&gt;,&lt;8,4,8&gt;)l(&lt;0,6,0&gt;,&lt;4,8,8&gt;)
isosurface{function{y/3+pow(cos(x)*cos(z),2)/2}contained_by{box{-9,100}}pigment{tiling 1 color_map{[.9 rgb 1][1 rgb 0]}scale .5/pi}}   
s(0)s(&lt;0,0,-1&gt;)s(&lt;-1,0,0&gt;)s(&lt;0,0,2&gt;)s(&lt;2,0,1&gt;)s(&lt;2,0,3&gt;)

Result:

ungolfed:
#version 3.7;
#include &quot;functions.inc&quot;                
global_settings{assumed_gamma 1} 
camera{
  location &lt;-3,5,-6&gt;  
  right x //set the aspect ratio
  look_at 0   
  focal_point 0 aperture 1 blur_samples 9
}  

#macro l(p,c) // position, color
  light_source{
    p c/8 
    area_light 9*x,9*z,3,3
  }
#end 
l(&lt;6,6,0&gt;,&lt;8,4,8&gt;)
l(&lt;0,6,0&gt;,&lt;4,8,8&gt;) 

isosurface{
  function{y/3+pow(cos(x)*cos(z),2)/2}
  contained_by{box{-9,100}}
  pigment{
    tiling 1
    color_map{[.9 rgb 1][1 rgb 0]}       
    scale .5/pi
  } 
}            
#macro s(p) //position
  sphere{
    pi*p+y/3 1
    pigment{rgb&lt;2,8,2&gt;/9}
    //phong for the wide highlights, specular for the small ones.
    finish{phong .5 phong_size 5 specular 1 roughness .001}
  }
#end   
s(0)
s(&lt;0,0,-1&gt;)
s(&lt;-1,0,0&gt;)                       
s(&lt;0,0,2&gt;)    
s(&lt;2,0,1&gt;) 
s(&lt;2,0,3&gt;)

P.S.: I've only counted the five line-breaks to round the character count to a perfectly round number.