Absorption Flashcards
1
Q
di/dx =
A
- k*i
> k: absorption coefficient
i: intensity
2
Q
What is intensity attenuation at x?
A
~ proportional to the intensity remaining at x
3
Q
T =
A
i/io = exp(-kx)
> beer lambert law
k: thickness independent materials constant
T: transmittance
4
Q
What is UV absorption cutoff?
A
~ the cutoff is from excitation of electron energy levels
5
Q
What is infrared absorption cutoff?
A
~ ion vibration resonance
6
Q
What is the effect of OH- in glass network?
A
~ causes vibration resonance absorption bands
7
Q
How can window glass be made more thermally insulating?
A
~ multiple panes
~ spectrally selective reflective coatings
