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59 OPTICAL FABRICATION
Thin films provide wide-angle correction for waveplate components
An alternate approach to traditional stretched-polymer or quartz waveplates introduces a C-plate (or out-of-plane) retardance in combination with hybrid-liquid-crystal polymer A-plate technology for a fl at retardance response.
KIM TAN, KAREN HENDRIX, AND PAUL MCKENZIE

65 QUANTUM DOTS
Inorganic materials effi ciently power flat-panel displays
A device with an inorganic quantum-dot monolayer embedded in organic fi lms promises high color saturation and effi ciency for full-color fl at-panel displays. SETH COE-SULLIVAN

71 PHOTOVOLTAICS
Enhancements enable solar simulators to shed light on new photovoltaic designs
Advances to Class A solar simulators allow measurement of parameters, including current voltage, quantum effi ciency, and efficiency of conversion from incident photon to charge carrier, during photovoltaic-cell design validation and certifi cation testing. JAY JEONG

77 OPTOELECTRONIC APPLICATIONS: DEFENSE & SECURITY
Photonics streamline next-generation battlewear
Optics, fibers, and optoelectronics are turning fi eld-based soldiers into network-centric ‘systems.’ KATHY KINCADE

83 IMAGE FUSION
Law-enforcement needs create demand for image fusion
Intelligent systems automatically combine outputs of different sensors for more effi cient image analysis. RICK S. BLUM

87 NANOPOSITIONING EQUIPMENT
Understanding noise at the nanometer scale
Position noise in a nanopositioner as a function of frequency is quantifi ed with the help of a known sine-wave reference signal, allowing scaling to refl ect the peak-to-peak noisepower spectrum of the nanopositioner. JAMES F. MACKAY

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