Optics Flashcards

1
Q

Nabla

A

D/dx
D/dy
D/dz

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2
Q

Divergence du vecteur v

A

Vx/dx
Vy/dy
Vz/dz

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3
Q

Rotationnel de v

A

Vz/dy - Vy/dz
Vx/ dz- Vz/dx
Vy/dx - Vx/dy

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4
Q

Gradient de f

A

Df/dx
Df/dy
Df/dz

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5
Q

Laplacien

A

Nabla de nabla

D2/dxcarre
D2/dycarre
D2/dzcarre

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6
Q

RotE

A

-dB/dt

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7
Q

RotB

A

Uo(J+eo*dE/dt)

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8
Q

DivE

A

-p/eo

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9
Q

Div B

A

0

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10
Q

Opph

A

Onde plate progressive harmonique

Vérifie DE + E* k^2 = 0 et DE^2/dt^2 + w^2*E = 0

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11
Q

Eq de propagation

A

DE - 1/c^2 * d^2E/dt^2 = 0

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12
Q

k

A

W/c

W pulsation

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13
Q

1/racine carré(uo*eo)

A

C au carré

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14
Q

E(r,t) =

A

Eo cos(wt - k.r)

R vecteur position au point de mesure… a un instant …

K vecteur d’onde, 2pie/frequence
Lié direction de propagation

M etat vibratoire alors k.r -> cst +2p*pie

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15
Q

Si lamba egal 2pie/k

A

Donc k*lamba egal pie

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16
Q

Bo=

A

Eo/c

17
Q

Intensite

A

Moy de [E^2 (r,t) ]

17
Q

Flux d’energie

Vecteur de Poynting

A

A la fin, oem = 1/w*uo * E^2 * k

19
Q

Triedre

E,B et

A

k

20
Q

k = 2pie / lamba

A

Aussi egale à c*T ou c/frequence

21
Q

B vecteur

A

Egal E vecteur * k/w

22
Q

Transport radiatif

A

Vecteur de poynting :
Pie vecteur = E vecteur produit vectorielle de B vecteur sur uo

[…] -> 1/wuo * E^2k

23
Q

P(r,t)

Polarisation, l’influence entre oem et matière

A

eoxe E(r,t)

Amene eq de propagation sauf que v remplace c qui est égale à (c/racine carré (1+xe)

24
Q

Fréquence intrinsèque à l’onde, la longueur change avec le milieu

A

Lamba de n = vitesse * T = c/n * T = lamba/n

25
Q

Direction de z

A

Polarisation