Cesium Energy Levels by Two Photon Absorption

Return to Multi-Photon Absorption. Go to D-State Energy Levels.

The Transition Energy corresponds to twice the energy of each incident photon, since two photons are aborbed simutaneously. Comparing our data with some of the energy levels in Charlotte Moore's Atomic Enery Levels, we found that each of the transition energies we determined experimentally were about 3 to 5 wavenumbers above the book value. Since this error is consistent throughout our data, this indicates the presence of a systematic error in taking data. We think this most likely occured while converting the dye laser dial reading to a wavelength in angstroms.

S-State Transitions:

Electronic	Incident Photon	Transition
State	Wavelength (Angstroms)	Energy (cm-1)
13s	6657.8	30039.95
14s	6600	30303.03
15s	6558	30497.10
16s	6526.6	30643.83
17s	6502.4	30757.87
18s	6483.2	30848.96
19s	6467.9	30921.94
20s	6455.5	30981.33
21s	6445.4	31029.88
22s	6436.75	31071.58
23s	6429.4	31107.10
24s	6423.01	31138.05
25s	6417.65	31164.06
26s	6413.05	31186.41
27s	6409.05	31205.87
28s	6405.59	31222.73
29s	6402.47	31237.94
30s	6399.67	31251.61
31s	6397.22	31263.58
32s	6395.02	31274.34
33s	6393.05	31283.97
34s	6391.28	31292.64
35s	6389.68	31300.47
36s	6388.23	31307.58
37s	6386.92	31314.00
38s	6385.7	31319.98
39s	6384.6	31325.38
40s	6383.6	31330.28

D-State Transitions:

Electronic	Incident Photon	Transition
State	Wavelength (Angstroms)	Energy (cm-1)
11d-1	6688.9	29900.28
11d-2	6688.2	29903.41
12d-1	6622.18	30201.53
12d-2	6621.65	30203.95
13d	6574	30422.88
14d	6540	30581.04
15d	6514	30703.10
16d	6491	30811.89
17d	6474	30892.80
18d	6460	30959.75
19d	6449.45	31010.40
20d	6440.25	31054.70
21d	6432.35	31092.84
22d	6425.58	31125.59
23d	6419.81	31153.57
24d	6414.9	31177.42
25d	6410.65	31198.08
26d	6407	31215.86
27d	6403.71	31231.90
28d	6400.79	31246.14
29d	6398.2	31258.79
30d	6395.9	31270.03
31d	6393.88	31279.91
32d	6392.01	31289.06
33d	6390.35	31297.19
34d	6388.82	31304.69
35d	6387.48	31311.25
36d	6386.22	31317.43
37d	6385.1	31322.92
38d	6384.08	31327.93
39d	6383.12	31332.64
40d	6382.28	31336.76
41d	6381.42	31340.99
42d	6380.67	31344.67
43d	6379.96	31348.16
44d	6379.33	31351.25
45d	6378.69	31354.40
46d	6378.09	31357.35
47d	6377.62	31359.66
48d	6377.2	31361.73

Return to Multi-Photon Absorption.

Table of Contents:

Title Page

Molecular Spectroscopy and the CO₂Molecule

Molecular Vibration Theory
Data and Analysis

Multi-Photon Absorption in Cesium

Ionization Spectra
Quantum Defect
Cesium Energy Levels

Raman Spectroscopy: Four-Wave mixing in Sodium Atoms

Theory: Raman Scattering and Four-Wave Mixing
Four Wave Mixing Data

Spectroscopic Aparatus

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