[cs_content][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]The Chemistry of Art > 2. The Structure of the Atom and Colours > Laser Microspectral Analysis >[/cs_text][cs_text style=”color: #800000;font-family: "Oxygen",sans-serif;”]Gather, process and present information to:
– describe the methodology involved in laser microspectral analysis
– assess the importance of the technology in assisting identification of elements in a compound
– provide examples of the technology’s use[/cs_text][cs_text]Light Amplification by Stimulated Emission of Radiation (LASER)
- Upon excitation of electrons, emission spectrum is produced after the electrons has reached the ground state
- Described as intense beam of very pure single colour
- Monochromatic
- Powerful
- Coherent
- Analysis requires vaporization and even destruction of a sample the pigment being analysed
- Vapour is fed through a gap between two sparking electrodes
- Important technique which is used for the determination of composition of elements
- The technology is widely applied for the restoration of pigments
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