FDS: spectroscopy intro

Question 1

OUTLINE

Answer 1

Question 2

sampling to results

Answer 2

Question 3

Basic principles of Spectroscopy

Some key aspects:

Answer 3

Question 4

Applications in spectroscopy are all based on?

Answer 4

Question 5

Dual character of light

general

Answer 5

Question 6

Wavelike character :

Answer 6

Question 7

Energy transferred per photon is given by the Einstein-Planck relation:

equations

Answer 7

Question 8

Energy transferred per photon is given by the Einstein-Planck relation: Conversion factors

table

Answer 8

Question 9

Spectra of atoms and molecules

Answer 9

Question 10

Classical mechanics

Answer 10

Question 11

Electrons occupy discrete energy levels

Answer 11

Question 12

Poly-electron atom

Answer 12

Question 13

Poly-electron atom

shells

Answer 13

Question 14

Absorption spectrum for Sodium (Na) (vapor)

Answer 14

Question 15

sodium

discrete values

Answer 15

Question 16

For polyatomic molecules: molecular orbitals

Answer 16

Question 17

For polyatomic molecules: molecular orbitals

scheme

Answer 17

Question 18

For polyatomic molecules: molecular orbitals are involved Transitions:

Answer 18

Question 19

Magnitude of the energy “gap” defines the wavelength region

Answer 19

Question 20

Visible light wavelength range

Answer 20

Question 21

Quantum principles and spectroscopy

delta E?

Answer 21

Question 22

Based on their electronic structure and characteristics: Clear difference in the observed absorption or emission spectra for

Answer 22

Question 23

NMR to gamma ray

Answer 23

Question 24

Wavelength regions

Answer 24

Question 25

Dependence on the nature of the species

Answer 25

Question 26

OUTLINE

Answer 26

Question 27

Monochromator:

Answer 27

Question 28

Output of a typical wavelength selector

Answer 28

Question 29

PRISM Based on Snell’s Law

Answer 29

Question 30

PRISM Refractive index of the prism

Answer 30

Question 31

PRISM dispersion

Answer 31

Question 32

Transmittance of construction materials

Answer 32

Question 33

Monochromator: DIFFRACTION GRATING

Answer 33

Question 34

DIFFRACTION GRATING Dispersion:

Answer 34

Question 35

reflection grating

Answer 35

Question 36

FILTER 3 types

Answer 36

Question 37

FILTER interference vs absorption

Answer 37

Question 38

Heated solids

Answer 38

Question 39

Sources (line and continuum)

Answer 39

Question 40

Hollow Cathode Lamp (HCL)

Answer 40

Question 41

OUTLINE

Answer 41

Question 42

“Optics”

Answer 42

Question 43

Detectors

Answer 43

Question 44

Overview of applications (instrumentation)

Answer 44