We demonstrate a frequency-domain streak camera (FDSC) that captures the picosecond time evolution of luminal-velocity refractive index structures in a single shot. In our prototype FDSC, a probe-reference pulse pair propagates obliquely to a subpicosecond pump pulse that creates an evolving nonlinear index structure in glass, supplementing a conventional frequency-domain holographic probe-reference pair that copropagates with the pump. A single spectrometer acquires data from both pairs via spatial or temporal multiplexing, demonstrating the feasibility of a compact frequency-domain tomographic system in which a single spectrometer processes data from multiple probing angles.
© 2010 Optical Society of America
Original Manuscript: April 15, 2010
Revised Manuscript: September 18, 2010
Manuscript Accepted: November 5, 2010
Published: December 1, 2010
Z. Li, R. Zgadzaj, X. Wang, S. Reed, P. Dong, and M. C. Downer, "Frequency-domain streak camera for ultrafast imaging of evolving light-velocity objects," Opt. Lett. 35, 4087-4089 (2010)