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Figure 3 | Nanoscale Research Letters

Figure 3

From: Donor impurity-related linear and nonlinear intraband optical absorption coefficients in quantum ring: effects of applied electric field and hydrostatic pressure

Figure 3

Absorption coefficient (colored lines) as a function of photon energy. Solid lines are for α1( ω). Dashed lines are for α3( ω,I), and dotted lines are for α( ω,I) = α1( ω) + α3( ω,I). The results are for R1 = 10 nm, R2 = 20 nm, L = 20 nm, F = 0, and I = 2×104W/cm2. Several values of the hydrostatic pressure have been considered.

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