摘要: This volume of the LLE Review, covering the period July-September 1987, contains an article on the measurement of rho R in high-compression laser-fusion experiments using secondary reactions. The section on advanced technology has... 展开 This volume of the LLE Review, covering the period July-September 1987, contains an article on the measurement of rho R in high-compression laser-fusion experiments using secondary reactions. The section on advanced technology has reports on the development of high-repetition-rate active-mirror amplifiers; electro-optic time-domain reflectometry; a new electro-optic finger probe; picosecond high-energy electron diffraction; and a method of using radial transmission lines to obtain very high electric fields. Finally, the activities of the National Laser Users Facility and the glass development and OMEGA laser facilities are summarized. The highlights of this issue are: A method for measuring the rho R in high-density laser-fusion experiments is described. A 3.8-cm, clear-aperture Cr:Nd:GSGG active mirror has been designed and constructed. Two articles describe electro-optic sampling. The first deals with a method that employs counterpropagating electric pulses to facilitate the acquisition of distortion-free electro-optic signals for time-domain reflectometry. The second describes a new finger probe that uses total internal reflection of the optical probe. A new probe uses picosecond burst of electrons to study the structure of surfaces. High-energy electrons reflect off the surface to give a time-resolved diffraction pattern. An ultrafast high-voltage pulse injected into a radial transmission line exhibited a voltage gain of 2. This was the first experiment to demonstrate the feasibility of this concept for the construction of high-gradient, compact electron accelerators. (ERA citation 13:017848) 收起