ATM-36

Oscillator strength

Strong lines have f~1.

Reading speed

Atomicoscillator strength

Governing equation

f\propto A/\nu^2

where

A: A (1/s)
\nu: Frequency (THz)
f: f (—)

Lecture brief

Historical brief

Balmer, Rydberg, Bohr (1913), fine structure, Zeeman and Stern–Gerlach built the spectrum of one atom. The lab computes levels, selection and magnetic splitting. This sheet (ATM-36 — Oscillator strength) is the form associated with oscillator strength. Working symbols: $A$ , $\nu$ $\rightarrow$ $f$ . Strong lines have f~1.

Purpose

Purpose: compute

f

from

A

\nu

in Atomic physics via

f\propto A/\nu^2

Strong lines have f~1. Use it when a real atomic physics question must be answered in SI before a code check.

Live realistic example

In symbols

Live case. Given

A = 1.000e+8\,\mathrm{1/s}

\nu = 500.000\,\mathrm{THz}

, the governing relation

f\propto A/\nu^2

yields

f = 5.996e-12\,\mathrm{—}

. Strong lines have f~1. Move a slider: the numbers are this situation, not a canned story.

Calculator

Inputs

A A100000000 1/sFrequency \nu500 THz

Outputs

f f0.0000 —

Reading speed

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Narration of this film

Strong lines have f~1.

Reading speed

Watch on YouTube