“…Thermophotovoltaics, moreover, can be used with sources other than the sun, for example to recycle the heat generated in industrial processes. Other applications of thermal radiation, aside from energy production and conversion schemes are thermal imaging 14,15 , radiative cooling [16][17][18][19][20][21][22][23][24][25][26][27][28][29] , thermal circuitry [30][31][32][33][34][35][36][37][38][39] and camouflaging [40][41][42][43][44] , among others. Thermal radiation is traditionally assumed to be incoherent, however recent results have proven that it can possess a high degree of both spatial and temporal coherence, as we will discuss later.…”