Good morning, I request the guide of Physicists with experience in the experimental physics. I'm in my fifth year of bachelor in physics, because in my country (Colombia), most Bachelor degrees have a duration of five years. My plans are to perform a master's degree next year, and then continue to the doctorate and if possible pursue with P.h.Ds. The point is that yet i don't decide which field to I specialize in physics, because I love my job as a researcher and I love many branches of physics. The options that I have thought, are the areas of nanoscience, photonics, plasma physics, quantum optics, particle physics and computational physics, by high to low affinity. I want choose the specialization that can be exercised in the industry and the private sector, and also in the academy and that in turn is very well paid. Considering these factors, I would like to read your opinions about the branches of applied physics with those characteristics. I'm open to listen other areas of specialization that you believe meet what I describe. Thank you all for your valuable help, I'll be very grateful.