Karen Twietmeyer

Dr. Karen Twietmeyer

Principal Optical Engineer, QD Vision
Lexington, MA


Marita Cheng
Amy Devine
Ashley Stubbe
April Blackwell
Rachel Rothman
Anita Riddle
Krista Murphy
Barbara Nielsen
Patricia Eng
Jennifer Nakayama
Tiera Fletcher (Guinn)
I'm the Principal Optical Engineer at QD Vision, a startup in Lexington, Massachusetts. My company makes quantum dots, and we were the first company to put the beautiful colors of quantum dots into TVs (made by Sony) that are sold around the world and have won many prizes! I work on optical designs to make quantum dot displays more efficient, and I design instruments to measure the quantum dots in production before they are put into the TVs. My degrees are a BS in electrical engineering from MIT, an MS in electro optics from Tufts, and a PhD in optical physics from the University of Arizona. I started out as an electrical engineer but I totally fell in love with optics and decided to become an optical engineer! It is a totally amazing field! My favorite past projects are designing a polarization based imaging laser ophthalmoscope for my PhD dissertation (it has a long name, but basically it's a new kind of instrument to detect eye diseases), and working on a laser instrument to detect cervical cancer at a startup company.
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BS in Electrical Engineering - MIT MS in Electrical Engineering - Tufts PhD in Optical Physics - University of Arizona
Volunteer Opportunities
  • I am willing to be contacted by educators for possible speaking engagements in schools or in after school programs or summer camps.
  • I am willing to serve as science fair judge or other temporary volunteer at a local school.
  • I am willing to be contacted about potential job shadowing by interested students.
  • I am willing to be interviewed by interested students via email.
  • I am willing to answer written interview questions to be posted on the EngineerGirl website.