A 1/3-inch 360 kpixel IT-CCD image sensor has been developed to satisfy recent demand for small CCD image-sensors with higher resolution and higher sensitivity. The photo-diode aperture and the microlens structure were optimized using microlens simulation technology. As a result, a minimum object illumination of 3 lux and a low smear level of 0.002% have been achieved.
A 114-inch 380k pixel IT-CCD has been developed. Main characteristics match the conventional 1/3-inch CCD's.This CCD makes external bias circuits unnecessary. By reducing H-CCD pulse amplitude to 3.6V low power consumption and low EMI are obtained.
We developed a liquid-crystal spatial light modulator having a 30 mm active area and a multilayered dielectric mirror for industrial infrared lasers to establish an innovative manufacturing and fabrication technique in the smart-manufacturing post-pandemic era. The reconstruction of computer-generated holograms was achieved to demonstrate the concept of this device in the IR region. The incident phase performance characteristics of this device under high-power laser irradiation were obtained using a 1030 nm ultrashort pulse laser. The work presented here will accelerate the use of liquid-crystal SLMs in high-precision laser processing of the process-resistant materials and high-throughput processing for additive manufacturing.
We propose a dynamic-spectral-broadness Littman/Metcalf external cavity diode laser, which replaces the flat end mirror of the external cavity with a curved one with a tunable radius of curvature (RoC). The concept was verified via simulation; first, the frequency selectivity of the cavity was calculated for each RoC using Gaussian-beam optics combined with ray tracing, and second, laser oscillation and amplified spontaneous-emission (ASE) spectra were obtained using the transmission-line laser model. The simulation revealed a tuning range with spectral broadness: 250 kHz for single-mode operation, 1.2–47 GHz for multi-mode operation, and 50 GHz–3.9 THz for ASE.
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