Transcript Week8-figs-ppt

Trivia Question
Where is the largest laser system in the
world?
(a) Andrews Air Force Base
(b) USS Enterprise
(c) Area 51, located in ????
(d) Sandia National Lab, New Mexico
(e) Lawrence Livermore National Lab,
California
Trivia Question
Where is the largest laser system in the world?
(e) Lawrence Livermore National Lab, California
National Ignition Facility (NIF) – is a quest for clean
fusion energy. Pellets of hydrogen of fused using
intense laser pulses.
July 5th, 2012: 192 laser beams delivered 1.85MJ
and 500 trillion watts of power (short time period).
1000 times more power than used by US at any
instant of time.
Trivia Question
Where is the largest laser system in the world?
(e) Lawrence Livermore National Lab, California
National Ignition Facility (NIF) – is a quest for clean
fusion energy. Pellets of hydrogen of fused using
intense laser pulses.
July 5th, 2012: 192 laser beams delivered 1.85MJ
and 500 trillion watts of power (short time period).
1000 times more power than used by US at any
instant of time.
Trivia Question
In addition to being famous for developing
Maxwell’s Equations for electromagnetic
theory, James Clerk Maxwell is also famous
for discoveries in which of the following
topics?
(a) Relativity
(b) Nuclear Physics
(c) The Telephone
(d) The internet
(e) Human color vision
Trivia Question
In addition to being famous for developing
Maxwell’s Equations for electromagnetic
theory, James Clerk Maxwell is also famous
for discoveries in which of the following
topics?
(a)
(b)
(c)
(d)
(e) Human color vision
Where are we in our ‘road map’ of
Optics?
The ‘amplitude’ of the wave in optics will be related to the ‘magnitude’ of electric
and magnetic fields. Electric fields and magnetic fields will be treated as vectors,
not scalars.
Maxwell’s Equations
Integral
Differential
Qencl
o

E

 B dS  0
 B0
 E dS 
S
S


C E dl   t  S B dS 

E 
C B dl   S  J   t  dS
B
 E  
t

E 
 B   J 

t 

Animations of Electromagnetic waves
E and B fields
http://phys23p.sl.psu.edu/phys_anim/EM/embederQ3.50100.html
E and B with another polarization
http://phys23p.sl.psu.edu/phys_anim/EM/embederQ3.50150.html
http://phys23p.sl.psu.edu/phys_anim/EM/indexer_EM.html
Capacitors come in all shapes and sizes….
Similar principle can be used for “touch
screens” of tablets, smart phones, etc.
Parallel plate capacitor
Note: it is ASSUMED that charge is equal and opposite on the two plates
The positive charges on one plate are attracted to the negative charges
on another. If we let the charges move (ie. current), we could power (for
example) a light bulb.
In that case we would convert STORED energy of electric field (from
separated charges) to electrical power for light bulb.
Inductors come is various shapes and sizes
Inductors store energy in form of
magnetic field
I
I
B
C
Using Light’s Momentum for
Propulsion – Solar Sailing
Nonlinear Optics