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Diffstat (limited to 'sample_notebooks/yashwanth kumarmada')
| -rwxr-xr-x | sample_notebooks/yashwanth kumarmada/Chapter_5_Laser.ipynb | 272 |
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diff --git a/sample_notebooks/yashwanth kumarmada/Chapter_5_Laser.ipynb b/sample_notebooks/yashwanth kumarmada/Chapter_5_Laser.ipynb new file mode 100755 index 00000000..e5562a27 --- /dev/null +++ b/sample_notebooks/yashwanth kumarmada/Chapter_5_Laser.ipynb @@ -0,0 +1,272 @@ +{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 5 Laser"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_1 pgno:242"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 1 # \n",
+ "\n",
+ "\n",
+ " Number of oscillation corresponding to coherent length is \n",
+ " Coherent time is sec. 50000.0 9.81666666667e-11\n"
+ ]
+ }
+ ],
+ "source": [
+ "# Given that\n",
+ "l = 2.945e-2 # coherent length of sodium light\n",
+ "lamda = 5890 # wavelength of light used in angstrom\n",
+ "c = 3e8 # speed of light\n",
+ "# Sample Problem 1 on page no. 242\n",
+ "print(\"\\n # PROBLEM 1 # \\n\")\n",
+ "n = l/(lamda*1e-10) # number of oscillation corresponding to coherent length\n",
+ "t = l/c # coherent time\n",
+ "print\"\\n Number of oscillation corresponding to coherent length is \\n Coherent time is sec.\",n,t\n",
+ "\n",
+ "\n",
+ "\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_2 pgno:242"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 2 # \n",
+ "\n",
+ "\n",
+ " Angular spread is rad. \n",
+ " Areal spread is m^2. 0.00016 4096000000.0\n"
+ ]
+ }
+ ],
+ "source": [
+ "\n",
+ "# Given that\n",
+ "l = 4e5 # Distance of moon in km\n",
+ "lamda = 8e-7 # wavelength of light used\n",
+ "a = 5e-3 # Aperture of laser\n",
+ "c = 3e8 # speed of light\n",
+ "# Sample Problem 2 on page no. 242\n",
+ "print\"\\n # PROBLEM 2 # \\n\"\n",
+ "theta = lamda/a # Angular of spread \n",
+ "Areal_spread = (l*1000*theta)**2 # Areal spread\n",
+ "print\"\\n Angular spread is rad. \\n Areal spread is m^2.\",theta,Areal_spread\n",
+ "\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_3 pgno:242"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 3 # \n",
+ "\n",
+ "\n",
+ " Number of oscillation corresponding to coherent length is \n",
+ " Coherent time is sec. 50000.0 9.81666666667e-11\n"
+ ]
+ }
+ ],
+ "source": [
+ "\n",
+ "# Given that\n",
+ "l = 2.945e-2 # coherent length of sodium light\n",
+ "lamda = 5890 # wavelength of light used\n",
+ "c = 3e8 # speed of light\n",
+ "# Sample Problem 3 on page no. 242\n",
+ "print\"\\n # PROBLEM 3 # \\n\"\n",
+ "n = l/(lamda *1e-10) # number of oscillation corresponding to coherent length\n",
+ "t = l/c # coherent time\n",
+ "print\"\\n Number of oscillation corresponding to coherent length is \\n Coherent time is sec.\",n,t\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_4 pgno:243"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 4 # \n",
+ "\n",
+ "\n",
+ " Energy difference is eV. 0.365641494412\n"
+ ]
+ }
+ ],
+ "source": [
+ "\n",
+ "# Given that\n",
+ "k = 12400 # constant\n",
+ "lamda = 3.3913 # wavelength IR radiation\n",
+ "\n",
+ "# Sample Problem 4 on page no. 243\n",
+ "print\"\\n # PROBLEM 4 # \\n\"\n",
+ "E = k/(lamda*1e4) # Energy difference\n",
+ "print\"\\n Energy difference is eV.\",E\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_5 pgno:"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 5 # \n",
+ "\n",
+ "\n",
+ " Energy of one photon is eV. \n",
+ " Total energy is J 1 4.8\n"
+ ]
+ }
+ ],
+ "source": [
+ "\n",
+ "k = 12400 # constant\n",
+ "lamda = 6943 # wavelength of radiation in angstrom\n",
+ "n = 3e19 # Total number of ions\n",
+ "# Sample Problem 5 on page no. 243\n",
+ "print\"\\n # PROBLEM 5 # \\n\"\n",
+ "E = k/(lamda) # Energy difference\n",
+ "E_total = E*n*1.6e-19 # Total Energy emitted \n",
+ "print\"\\n Energy of one photon is eV. \\n Total energy is J\",E,E_total\n"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 5_6 pgno:244"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {
+ "collapsed": false
+ },
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "\n",
+ " # PROBLEM 6 # \n",
+ "\n",
+ "\n",
+ " Required length of cavity is cm. 10.010896\n"
+ ]
+ }
+ ],
+ "source": [
+ "\n",
+ "# Given that\n",
+ "h_w = 2e-3 # half width of gain profile of laser in nm\n",
+ "mu = 1 # refractive index\n",
+ "lamda = 6328 # wavelength of light used in angstrom\n",
+ "# Sample Problem 6 on page no. 244\n",
+ "print\"\\n # PROBLEM 6 # \\n\"\n",
+ "L = (lamda*1e-10)**2/(2*mu*h_w*1e-9) # Length of cavity \n",
+ "print\"\\n Required length of cavity is cm.\",L*100\n",
+ "\n"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 2",
+ "language": "python",
+ "name": "python2"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 2
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython2",
+ "version": "2.7.9"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}
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