Fig. 1. Schematics of interaction between gold nanoshell and electromagnetic field. (a) Single nanoshell;(b) dimer

Fig. 2. Comparison of calculation results between this paper and Chen et al^[13]. (a) Absorption cross-section; (b) absorbed power; (c) temperature-rise field distribution

Fig. 3. Influences of particle radius r and shell thickness s on |E/E₀|_max and DT_max(λ=585 nm). (a) Effect on |E/E₀|_max; (b) effect on DT_max

Fig. 4. When r is 32.5 nm and s is 12 nm, electric field intensity |E/E₀| and temperature-rise field DT distributions. (a) Electric field intensity distribution; (b) temperature-rise field distribution; (c) electric field intensity distribution along the y axis; (d) temperature-rise field distribution along the y axis

Fig. 5. Influence of particle radius r and shell thickness s on |E/E₀|_max and DT_max (λ=755 nm). (a) Effect on |E/E₀|_max; (b) effect on DT_max

Fig. 6. Effect of interparticle distance l on |E/E₀| of local electric field. (a) Electric field intensity distribution when l is 0 nm; (b) electric field intensity distribution when l is 60 nm; (c) electric field intensity distribution along the y axis when l is 0 nm; (d) electric field intensity distribution along the y axis when l is 60 nm

Fig. 7. Effect of interparticle distance l on DT. (a) Temperature-rise field distribution when l is 0 nm; (b) temperature-rise field distribution when l is 60 nm; (c) temperature-rise field distribution along the y axis when l is 0 nm; (d) temperature-rise field distribution along the y axis when l is 60 nm

Fig. 8. Influence of interparticle distance l on |E/E₀|_max and DT_max. (a) Effect on |E/E₀|_max; (b) effect on DT_max