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{
"metadata": {
"name": "",
"signature": "sha256:960fd108c21eb5121a849117765bbc8e0d88eb94076f3988470cabfdb760bcc0"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter8-Polarization"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex2-pg200"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 8.2\n",
"##Polarizer,calculation of angle\n",
"\n",
"##given values\n",
"Io=1.;##intensity of polarised light\n",
"I1=Io/2.;##intensity of beam polarised by first by first polariser\n",
"I2=Io/3.;##intensity of light polarised by second polariser\n",
"\n",
"\n",
" ##calculation\n",
"a=math.acos(math.sqrt(I2/I1));\n",
"alpha=a*180./math.pi;##conversion of angle into degree\n",
"print'%s %.1f %s'%('angle between characteristic directions (in degree) is',alpha,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"angle between characteristic directions (in degree) is 35.3 \n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex3-pg209"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"##Example 8.3\n",
"##calculation of birefringence\n",
"\n",
"##given values\n",
"\n",
"l=6*10**-7.;##wavelength of light in metre\n",
"d=3*10**-5.;##thickness of crystal\n",
"\n",
"\n",
" ##calculation\n",
"x=l/(4.*d);\n",
"print'%s %.3f %s'%('the birefringance of the crystal is',x,'');"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"the birefringance of the crystal is 0.005 \n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
