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PHYC/ECE 568 Nonlinear Optics

News & Updates:

Due to COVID-19 outbreak, in-class lectures are suspended until further notice.  Enrolled students should join on-line lectures by the instructor using Zoom.  The link and password has been emailed to you all.  

Online Zoom lectures will be held during the class hours (MW, 4-5:15pm).  

Help with Zoom (UNM) log-in? 

Link: ZOOM Lectures  

(Only in case we are cut-off after 40 min, let's try starting a new session using this  Link )

In short: After clicking on the above link, sign-in using SSO;  enter "unm" in the dialogue box, and then sign-in as your UNM account. (More Here

About Your Homework: Please (preferably) scan and email them to TA ( Mingyang Zhang ) or drop it at PAIS (Mingyang’s mailbox). 

Please stay safe and practice social distancing.  

Office: Physics & Astronomy (PAIS), Rm. 2220 
Phone: 226-3693
Office Hours: By appointment or just stop by

Teaching Assistant (TA): Mingyang Zhang 

Class meeting times: MW 4:00-5:15 PM; PAIS 1140
Textbook: Nonlinear Optics, (3rd edition) by Robert W. Boyd 

Other References:


Advanced Optics, Laser Physics I, (Check UNM Catalog for more details). Basic knowledge of Quantum Mechanics is also required.

Some Useful References:


Homework problem sets will be assigned on a regular basis throughout the semester.

There will be one midterm exam and a final presentation.

HW#Due DateDescriptionSolution Remarks
1Mon. Feb. 10PDFPDF
2Wed. Feb. 19PDFPDF
3Wed. March 4PDFPDF-Revised2
4Mon. March 23PDFPDFZOOM Lectures PDF
5Wed. April 1PDF
6Mon. April 13PDF

Mid-Term Exam

Open Book-  Closed Notes 


The final pretensions will be held on the following two days:  (TBD)

All are required to attend and participate in both sessions.   Students will be selected randomly to make their presentations. 

Please make your presentations clear, educational and entertaining, not exceeding 20 min.



Tentative Grading (subject to change): The final grade is weighted as follows:
Midterm Exam: 45%
Final Project: 40%
Homework: 15%
Course Syllabus

  • Introduction (historical overview, applications of NLO)
  • Nonlinear Susceptibilities (χ(2) and χ(3) processes, nonlinear refraction and absorption)
  • Classical Anharmonic Oscillator Model
  • Properties of Nonlinear Susceptibilities (symmetries, Kramers-Kronig dispersion relations)
  • Wave Propagation in NLO Media (coupled amplitude equations for χ(2) processes, phase matching, second harmonic generation, sum and difference frequency generation, optical parametric processes, cascading nonlinearities)
  • Quantum Mechanical Treatment of Nonlinear Susceptibilities
  • χ(3) Processes (electronic, vibrational and rotational effects, optical Kerr effect, self-focusing, wave-mixing, bistability, phase-conjugation, beam coupling, solitons)
  • Photo-Refractive Nonlinearities
  • Stimulated Light Scattering (stimulated Raman, Brillouin, and Rayleigh scattering)

Class information

Final Presentations

  • An oral presentations ( maximum of 18 minutes) is expected on each subject.
  • There will be an additional 3-5 minutes for question and answer at the end of each presentation.
  • All students enrolled are required to attend every presentation by their fellow classmates and preferably participate in the discussions.
  • The presentations should be clear and understandable by all the students. Use equations sparingly (only if needed) and avoid crowded viewgraphs. Remember that you are responsible for making the class understand the topic. Do not try to cover to much material.

Useful Tips and Articles for Student Presentations: