Ultrahigh gradient particle acceleration by intense laser-driven plasma density waves

Ultrahigh Q pendulum suspensions for gravitational wave detectors

Ultrahigh-energy particle flux from cosmic strings

Ultrahigh-resolution 14,400-pixel trilinear color image sensor

Ultrahigh-resolution Cartesian absolute optical encoder

Ultrahigh-resolution electro-optical framing camera for reconnaissance and other applications using a 9216 x 9216 pixel wafer-scale focal plane array

Ultralightweight and hyperthin rollable primary mirror for space telescopes

Ultralightweight galvanic mirrors

Ultralightweight low-temperature fused Zerodur mirror

Ultralightweight mirrors: recent developments of C/SiC

Ultralightweight silicon carbide mirror design

Ultralightweight structures for deployed optics

Ultralightweight telescopes and precision pointers as enabling technologies for small low-cost missions

UltraLITE glass/composite hybrid mirror

Ultralow frequency oscillations of the high-latitude ionospheric electric field

Ultralow-Background Large-Format Bolometer Arrays

Ultralow-temperature resonant gravitational wave detectors, present state and future prospects

Ultramafic inclusions from San Carlos, Arizona: Petrologic and geochemical data bearing on their petrogenesis

Ultrametric and Generalized Ultrametric in Computational Logic and in Data Analysis

Ultrametric Distance in Syntax