A number of photonics researchers were among 72 recently elected members and 11 foreign associates of the National Academy of Engineers. They include: David A. Markle, CTO of Ultratech Inc., of San Jose, Calif., for his role in the invention and development of advanced photolithography systems used in the manufacture of semiconductor devices; George H. Born, a professor of aerospace engineering sciences at the University of Colorado, Boulder, for his contributions to satellite orbit determination and for applications of satellites to geophysics and oceanography; Rodney A. Brooks, director of the Computer Science and Artificial Intelligence Laboratory and a professor of computer science at the Massachusetts Institute of Technology, for his role in the foundations and applications of robotics; Young-Kai Chen, director of Lucent Technologies' Bell Laboratories, in Murray Hill, N.J., for his contributions to the development of high-speed compound semiconductor electronics and optoelectronics for telecommunications; Larry A. Coldren, professor of optoelectronics and sensors at the University of California, Santa Barbara, and chief scientist for Agility Communications Inc., in Santa Barbara, for his work on diode lasers, especially vertical-cavity and widely tunable distributed Bragg reflector lasers; E. Trifon Laskaris, chief technologist, Imaging Technologies, GE Global Research, in Niskayuna, NY, for pioneering contributions to the design and construction of superconducting magnets for magnetic resonance imaging systems; and Tatsuo Izawa, president and CEO of NTT Electronics Corp., Tokyo, for the invention and perfection of the vapor axial-deposition method for the production of optical fibers.