PLASMONIC HEATING
Plasmon is a collective oscillation of electrons in metals, which are modeled as plasma gases, due to electromagnetic wave interference. When the frequency of the electromagnetic waves is the same as the plasmon frequency, there will be a resonance phenomenon which makes plasmons have very high abso...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/29616 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Plasmon is a collective oscillation of electrons in metals, which are modeled as plasma gases, due to electromagnetic wave interference. When the frequency of the electromagnetic waves is the same as the plasmon frequency, there will be a resonance phenomenon which makes plasmons have very high absorbance values. This very high absorbancy causes energy from electromagnetic waves to be converted to thermal energy efficiently. In a locally excited surface plasmons on the surface of the scattering particles, the thermal energy produced causes the temperature around the scattering particles to experience an increase relative to the ambient temperature. A systematic approach is used in this Final Project to determine the amount of temperature change produced when radiation is given to a nanometer-sized metal ball. It is generally known that for quasistatic cases, the permitivity of materials and the environment affects the resonance frequency of plasmons, therefore the choice of a resonant state through the above physical parameters can be an optimization factor to obtain the highest temperature rise. It was found that the gold shell configuration provides a higher temperature change and its resonance frequency can be controlled. |
|---|