High Repetition Rate Pulse-Burst Laser and Camera for Energy Deposition Research
Abstract
Final Progress (1 Jun 02 30 Nov 03): A high speed camera and pulse-burst Nd:YAG laser system has been purchased as part of the DURIP equipment grant to be used for the development of novel diagnostic techniques and research associated with energy deposition. This system will allow a burst of laser pulses (for diagnostics and flow excitation utilizing laser energy deposition) and subsequent imaging at MHz rates. Preliminary images with the DALSTAR 64K1M camera system and two Epix frame grabbing boards have been taken for flows associated with laser induced breakdown in air and arc/plasmas plumes to test the system. The custom built pulse burst laser has been designed, assembled and initial performance evaluations completed. The laser is initiated with a Lightwave cw Nd:YAG diode pumped laser, chopped with a programmable Pockels cell Kentech pulse shaper, and amplified by five Nd:YAG flashlamp from Quantronics-Continuum. The system can provide a packet of pulses with over 28 mJ of energy with pulse separation variable from one microsecond and above. The laser and camera will be used in the study of energy deposition in supersonic flows and the development of temporally resolved flow visualization and quantitative diagnostics techniques. The techniques developed will be applied to current research projects involving energy deposition for local flow control and as well as other studies of DOD research interest.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 2003
- Accession Number
- ADA420384
Entities
People
- Doyle Knight
- Greg Elliott
Organizations
- Rutgers University Department of Mechanical and Aerospace Engineering