Controlling mass and energy diffusion with metamaterials

Spatiotemporal diffusion metamaterials: Theories and applications

“…In contrast to wave processes, diffusion systems have distinctly different governing equations and application scenarios. Diffusionics 10,11 has emerged to manipulate heat 12 and other energy 13 and mass diffusions. Diffusion metamaterials [14][15][16] usually feature timedependent yet frequency-independent characteristic lengths.…”

A graph neural network approach to the inverse design for thermal transparency with periodic interparticle system

“…The emergence of thermal metamaterials, coupled with their ongoing evolution and application, has fundamentally transformed the landscape of research in the manipulation of thermal transport behavior. [1][2][3][4][5][6][7][8][9] This evolution has given rise to a myriad of intriguing and practical applications, including thermal cloaks, [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] thermal concentrators, [14,25,26] thermal camouflage, [27][28][29][30][31][32][33][34][35] and thermal transparency. [36][37][38][39][40][41][42][43][44][45][46] In recent years, the exploration of thermal metamaterials and their applications has experienced a considerable boost thanks to the introduction of ma...…”

Realization of an Adaptive Radiative Cooler with a Multilayer-Filter VO2-Based Fabry–Pérot Cavity

“…[1,2] To enable daytime radiative cooling, near-zero solar energy absorption and ultra-high long-wave infrared (LWIR) emission are required. In recent years, the utilization of photonic crystals, [3][4][5][6] random particles, [7][8][9] porous films [10][11][12] and metamaterials [13][14][15][16][17] has been demonstrated to achieve effective radiative cooling. However, these static radiative coolers are only effective in high temperatures and are not suitable for low-temperature environments.…”