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Entry  Wed May 17 18:08:45 2017, Dhruva, Update, Optical Levers, Beam Profiling Setup 1.jpg2.jpg3.jpg4.jpg5.jpg
    Reply  Mon May 22 10:53:02 2017, Dhruva, Update, Optical Levers, Beam Profiling Results  6x
       Reply  Tue May 23 10:27:24 2017, Dhruva, Update, Optical Levers, Beam Profiling Results  6x
          Reply  Tue May 23 15:22:04 2017, rana, Update, Optical Levers, Beam Profiling Results  
             Reply  Tue May 30 18:31:54 2017, Dhruva, Update, Optical Levers, Beam Profiling Results  plots.pdfspot_size_y.pdf
                Reply  Thu Jun 8 12:43:42 2017, Dhruva, Update, Optical Levers, Beam Profiling Results  profile.pdf
          Reply  Tue May 23 16:33:00 2017, Steve, Update, Optical Levers, Beam Profiling Results  
Message ID: 13021     Entry time: Tue May 30 18:31:54 2017     In reply to: 13007     Reply to this: 13053
Author: Dhruva 
Type: Update 
Category: Optical Levers 
Subject: Beam Profiling Results  

​Updates in the He-Ne beam profiling experiment. 

  1. I've made intensity profile plots at two more points on the z-axis. The additition of this plots hasn't affected the earlier obtained beam waist significantly. 
  2. I have added other sources of error, such as the statisitical fluctuations on the oscilloscope(which is small compared to the least count error of the micrometer) and the least count of the z-axis scale.
  3. I have also calculated the error in the parameters obtained by fiiting by calculating the covariance matrix using the jacobian returned by the lsqcurvefit function in MATLAB. 
  4. I have also added horizontal error bars to all plots. 
  5. All plots are now in S.I. units 

 

 

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