Three techniques were investigated as possible schemes for improving the detectability of a Continuous-Wave (CW) signal within a large Radio-Frequency (RF) bandwidth when a minimum of detection time is available. Each technique is compared to a conventional sweeping receiver. Two of the techniques ...
A new CW EPR technique, termed NARS, that uses a small coil to sweep the polarizing magnetic field repetitively at a rate that approaches, but does not satisfy, the adiabatic condition (Eq. (2)) has been developed at two microwave frequencies. Under these circumstances, a direct detection sc...
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H 6 ) at 3.34μm using awidely tunable cw single-frequency optical parametric oscillator. The high frequency and power stability and the continuous tunability of the parametric oscillator make it ideally suited for this application. Detection sensitivities of 0.5ppb for ethane are obtained, which is...
A novel continuous-wave (CW) direct detection lidar (DDL) is demonstrated to be capable of wind speed measurement 40 m away with an update rate of 4 Hz using a fiber-based scanning Fabry–Perot interferometer as an optical frequency discriminator. The proposed CW DDL has a large dynamic wind...
LIDAR TIME-OF-FLIGHT AND INTENSITY DETECTION SIGNAL-PATH BASED ON PHASE-CODED MULTI-PULSE TRANSMISSION AND SINGLE-BIT OVERSAMPLED MATCHED FILTER DETECTION A light detection and ranging (Lidar) system includes a light transmission component driven by a phase-keyed burst pattern generator operable to ap...
CHIP DEFECT DETECTION DEVICE AND DETECTION METHOD A chip defect detection device and detection method. The chip defect detection device comprises: a light source member (10), for transmitting a beam having at least two wavelengths; a beam splitter (40), for receiving the beam transmitte... P...
(57)< Abstract > This invention gives the analog light/write detection device. As for the said device, first and second area, the expedient which can add the sample where content of expedient and the analog light/write which can add the probe in first area is doubted and from first area...