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The temporal properties of nonlinear absorption of a stilbenzene derivative have been investigated by time-resolved pump-probe techniques with picosecond laser pulses at the wavelength of 532 nm. With the help of an additional nanosecond and picosecond open-aperture Z-scan technique, numerical simulations based on a new five-energy level model are used to(More)
Two-photon absorption induced excited state absorption in the solution of a new fluorenyl-based chromophore is investigated by a time-resolved pump-probe technique using femtosecond pulses. With the help of an additional femtosecond open-aperture Z-scan technique, numerical simulations based on a three-energy level model are used to interpret the(More)
Nowadays, there is a greater need for energy efficient and stable underwater sensor networks (UWSNs). Underwater sensors usually do not have enough power, so the goal of underwater sensor networks is to make the network have a long lifetime. An underwater heterogeneous sensor network (UWHSN) is one way to cluster the sensors, and the application of UWHSNs(More)
To further investigate the influence of dye architecture on dye-sensitized solar cell (DSSC) performance, some near-infrared absorbing quinoline-based squaraine dyes (4a, 4b, and 4c) with different conjugated degrees carrying carboxylic or sulfonic groups as anchoring groups were designed, prepared, and applied as sensitizers in solar cells. The(More)
According to the problem that single line-scan camera loss of light in the edge of the sensor when the field of view is large, this paper presents a design of mosaic camera based on FPGA. Using the method of putting multiple cameras arranged in a straight line to share the field of view and reduce the view angle of every camera. Then, in view of the(More)
Self-assembly of C3 discotic molecules bearing dipeptide pendants into helical supramolecular polymers is investigated. The dipeptides are constituted from glycine and alanine with altered sequence, aiming at modulating the steric hindrance and examining the steric effects on the assembly. This steric hindrance effect is further illustrated with a dipeptide(More)
A novel BODIPY-based fluorescent thermometer, which shows a lysosome-targeting property, was successfully prepared. Due to the electron-donating ability of the oligo(ethylene glycols), the photoinduced electron-transfer pathway from morpholine to BODIPY dye is blocked. The fluorescence of the thermometer quenched by intramolecular rotation at room(More)
The substituent group and hydrogen bonds play important roles in supramolecular self-assembly. To exploit the influential mechanism of hydrogen bonds during the dipole-dipole induced supramolecular self-assembly, some rigid azobenzene molecules with different electronegativity and hydrogen bonding capabilities were identified and designed. Different(More)
Telemetry miniature transmitter is the sensing device, a major part, of the Internet of things. The design of the telemetry miniature transmitter according to FPGA not only has the characters of high integration, strong calculation and low power consumption, but also features high agility and strong actual effect. According to the overall system(More)
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