I am interested in ultrafast optical spectroscopy of solid state materials. The unique measurements and especially the process of developing new measurement tools for the optical measurement of quantities that are hard to measure in other ways, and the learning of transferrable skills, make this an attractive research direction for me, but I have no experience in this field. In addition, I'm not sure if this is an employable research direction. I've googled "spectroscopy semiconductor jobs" and come up with ~10 jobs, half of which are postdocs, rest are the laser companies that manufacture these systems. Its almost as if the only jobs in this field are academic research or selling things to academic researchers. I'm not sure, however, if the transferrable skills learned in such a project can be used to work in other areas of optics, or to transition into non-ultrafast measurements of materials. I have to make a decision on the group to join before November so I'm kind of nervous.