Hot-electron direct detectors: feasibility of NEP - Figure 3

Figure 3

Text Box: Fig. 3. Temperature dependencies
of the thermal conductivity Ge-ph ~ T5 for 250 Å-thick Hf meanders with the total
area 0.5 mm2, deposited on sapphire substrates. The solid line is the theoretical
estimate for the thermal conductivity Gb ~ T3 of the metal-sapphire interface.