group
Giuseppe Maruccio
giuseppe.maruccio@unisalento.it
Giuseppe Maruccio
Omnics Research Group
Dip. di Matematica e Fisica, Università del Salento,
CNR NANOTEC - Institute of Nanotechnology
Via per Arnesano, 73100, Lecce (Italy)
From classical to modern physics –
Energy quantization and photons
giuseppe.maruccio@unisalento.it
From Classical to Modern Physics
Timeline of classical physics
Deterministic universe and
rigid causality
giuseppe.maruccio@unisalento.it
c = 3.00 108
m/s
Electromagnetic waves
group
Giuseppe Maruccio
giuseppe.maruccio@unisalento.it
Black Body Radiation
4
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Radiative heat transfer & Stewart's Law
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Black Body Radiation
https://demonstrations.wolfram.com/BlackbodyRadiation/
b ≈ 2898 μm⋅K
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Black body radiation
sun!
Un corpo nero è un oggetto ideale che assorbe tutta la radiazione elettromagnetica incidente senza rifletterla
An approximate realization of
a black body as a tiny hole in
an insulated enclosure
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Black body radiation
The intensity and distribution (and peak) of the radiation
depends only on its temperature.
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Blackbody Radiation: the Laws of Stefan, Wien, and Planck!
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Blackbody Radiation: the Laws of Stefan, Wien, and Planck!
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Blackbody Radiation: the Laws of Stefan, Wien, and Planck!
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Blackbody Radiation: the Laws of Stefan, Wien, and Planck!
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Stars
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Stellar Classification: Types Of Stars!
group
Giuseppe Maruccio
giuseppe.maruccio@unisalento.it
Photoelectric Effect
15
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Photoelectric Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Photoelectric Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Photoelectric Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Demonstration of The Photoelectric Effect!
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Demonstration of The Photoelectric Effect!
group
Giuseppe Maruccio
giuseppe.maruccio@unisalento.it
X-Rays and
Bremsstrahlung
21
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Bremsstrahlung Radiation
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Production of X-Rays using Roentgen Method
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Production of X-Rays using Roentgen Method
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Bremsstrahlung Radiation
group
Giuseppe Maruccio
giuseppe.maruccio@unisalento.it
Compton effect
26
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Compton Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Compton Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Compton Effect
giuseppe.maruccio@unisalento.it
Structure of matter  Crisis of Classical Physics
└ Black body radiation └ Photoelectric effect └ X Ray & Bremsstrahlung └ Compton effect
Compton Effect
giuseppe.maruccio@unisalento.it
Notes
31
Notes
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00a_Modern Physics - Structure of Matter - Crisis, energy quantization & photons