Nesbitt W. Hagood, Gareth J. Knowles, chairs/editors ; sponsord by SPIE--The International Society for Optical Engineering ; cosponsored by Institute of Physics Publishing (IOPP) as part of its Smart Materials and Structures Series (Vol. 5) and Society for Experimental Mechanics (SEM) ; : set, pt. 1, pt. 2. -- SPIE, c1993. -- (Proceedings / SPIE -- the International Society for Optical Engineering ; v. 1917).