The Rabbit Hole members wasn’t done though, they also built a pocket-sized infinity mirror from an empty Altoids tin. The bottom of the tin was cut out, and a mirror glued in. A filter from a broken projector made a perfect half silver mirror, and some LEDs completed the project. ...
We used a dichroicmirror to filter out the signal light and finally achieved a mid-infrared laser at maximum output power of 5 W. There is a certain relationship between the polarization period and temperature of MgO:PPLN crystal with the output wavelength of mid-infrared laser. The variation ...
Table 1. Laser transmitter specifications from [4,7] for spaceborne measurement, estimated using a 1.2 m diameter telescope, an optical filter bandwidth of√1 nm, a receiver transmittance of 0.64, a pulse pair repetition rate of 50 Hz, a detector noise equivalent power of 100 fW/ Hz, an ...
First, K-means clustering based filter and moving window traversal algorithm are developed to locate the deepest point of the potential dips (including noises, true grooves, and slab joints). Subsequently the improved moving average filter and traversal algorithms are used to determine the left and...
A new fold-cross metal mesh filter for suppressing side lobe leakage in terahertz region. Opt. Commun. 2018, 413, 190–195. [CrossRef] 24. Carrillo, J.; Rico, A.; Alcocer, S. Experimental study on the mechanical properties of welded-wire meshes for concrete reinforcement in Mexico City...
Since high-order harmonics are generated from an infrared laser pulse by nonlinear interaction with a gaseous medium, one task is to filter out the fundamental infrared beam to ensure a pure interaction of the sample with XUV radiation [9–11]. This becomes even more important if a part of ...
However, it is also well-known that a W-profile can act as a low-pass filter. Indeed, in contrast to conventional step-index fibers, the fundamental mode of a W-type fiber can exhibit a nonzero cutoff. Revealed theoretically in the 1980s [18], this untypical feature has been largely ...
Such an averaging process acts as a low pass filter that can reduce high frequency noise as long as it is predominantly white and not being caused by drifts. It can then improve on the signal to noise ratio (SNR) by t0.5 (where t is the averaging time) [29,30]. The efficiency of ...
The final solution was filtered through filter paper (Standard Whatman filter paper having pore size 11 µm) Nanomaterials 2021, 11, 880 one hour. Then, deionized water (40 mL) was slowly added to this solution, stirred for 30 min, and again diluted with deionized water (100 mL) in an...
sensors Article Change Analysis in Structural Laser Scanning Point Clouds: The Baseline Method Yueqian Shen 1,2,*, Roderik Lindenbergh 2 and Jinhu Wang 2,3 1 School of Earth Science and Engineering, Hohai University, No. 1, Xikang Road, Nanjing 210098, China 2 Department of Geoscience and ...