August 28, 2014, Thursday, 239

General Optical Measurements

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Here we record the conventions and method to measure basic optical quantities of thin films: transmittance, reflectance, and absorption. We expressly have written this for the equipment within OLEG. ...Create at least one general figure

Transmittance

slit mount
slit mount
aluminium base
aluminium base
  • how to measure the transmittance more accurately

1. remove small slit mount and aluminium base
2. replace them with big slit mount
3. stick the substrate with a double-side tape
4. adjust the height and size of light





Reflectance

  • something here

Absorption=

  • bulk in film
  • in solution