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Unformatted text preview: the following: (a) Derive an expression of the nanoparticle temperature rise as a function of the particle diameter, thermal conductivity of the liquid, the refractive indices of the particle and the water, and the laser intensity. (b) Determine an optimal wavelength that creates maximum temperature rise. (c) Plot on graphs the particle temperature rise as a function of the laser intensity for particle diameter values of 5 nm, 10 nm, and 30 nm at the optimal wavelength, and 0.2 microns off the optimal wavelength (both sides of the wavelength). If you can focus a laser beam to 5 µ m in diameter, what power do you need for a temperature rise of 20 o C for 10 nm particles at the optimal wavelength?...
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This note was uploaded on 11/27/2011 for the course CHEMICAL E 20.410j taught by Professor Rogerd.kamm during the Spring '03 term at MIT.
- Spring '03