- Pulsars and Gravitational Waves Research
- Advanced Optical Sensing Technologies
- Cosmology and Gravitation Theories
- Astrophysical Phenomena and Observations
- Ocular and Laser Science Research
- Optical Systems and Laser Technology
- Geophysics and Sensor Technology
- Semiconductor Lasers and Optical Devices
- Radio Astronomy Observations and Technology
- Liquid Crystal Research Advancements
- Surface Modification and Superhydrophobicity
- Remote Sensing and LiDAR Applications
- Optical and Acousto-Optic Technologies
- Gamma-ray bursts and supernovae
- X-ray Diffraction in Crystallography
- Nanomaterials and Printing Technologies
- Geophysics and Gravity Measurements
- Adaptive optics and wavefront sensing
- Low-power high-performance VLSI design
- Photonic Crystals and Applications
- Advanced Semiconductor Detectors and Materials
- Image and Signal Denoising Methods
- Digital Filter Design and Implementation
- Advanced Fiber Optic Sensors
- Photorefractive and Nonlinear Optics
Chongqing University
2023-2025
Xi'an Shiyou University
2024
Shandong University of Science and Technology
2016
Harbin Institute of Technology
1989-2013
Previous studies on light-driven droplet transport often use light to heat the substrate generate a temperature difference, thereby changing wettability or surface tension at two ends of droplet, propel forward, and not much attention has been paid droplets with photothermal properties. Herein, we introduce method ink manipulation via near infrared lubricant infused surfaces. Rather than heating itself, this uses near-infrared irradiate one end an creating gradient inside it forming...
During the coalescence of binary black holes (BBHs), asymmetric gravitational wave (GW) emission imparts a kick velocity to remnant hole, affecting observed waveforms and parameter estimation. In this study, we investigate impact effect on GW observations using space- ground-based detectors. By applying Lorentz transformations, analyze waveform modifications due velocities. For space-based detectors, nearly 50% detected signals require corrections, while for fraction is below one-third. Q3d...
A design for optoelectronic multiple-value logic circuits that uses bistable laser diodes or light-emitting is reported. In this multiple-valued design, an tristable switching circuit, light-current mirror, in which two are connected parallel serves as the basic element. Five ternary implementations: Complement. Max(x, y), Min(x, Cycle, and Literals, have been demonstrated experimentally. Furthermore, any function can be generated with mirror primitives.
There are tens of millions compact binary systems in the Milky Way, called galactic binaries (GBs), most which unresolved, and gravitational waves (GWs) emitted overlap to form confusion foreground. By simulating such a foreground, we have studied how LISA, Taiji TianQin, including their alternative orbital configurations, subtract resolvable GBs when they combine as some networks. The results our research indicate that order detected number for single detector from high low is Taiji-m,...
Space-based gravitational wave (GW) detectors are expected to detect the stellar-mass binary black holes (SBBHs) inspiralling in low-frequency band, which exist several years before merger. Accurate GW waveforms inspiral phase crucial for detection and analysis of those SBBHs. In our study, based on post-Newtonian (PN) models, we investigate differences detection, accuracy requirement, parameter estimation SBBHs cases LISA, Taiji, their joint detection. We find that low-order PN models...
We present a technique to reconstruct higher resolution of depth map range gating imaging lidar by applying the delays gates typical system during detection each returned laser pulse with encoding signal. With consequent gate, scene is extended accordingly. A multipulse gate-delayed designed prove improvement from 6 1.5 m. The unchanged peak power laser, widths and sampling period result in simple structure system.
With the observation of a series ground-based laser interferometer gravitational wave (GW) detectors such as LIGO and Virgo, nearly 100 GW events have been detected successively. At present, all are generated by mergers compact binary systems identified through data processing matched filtering. Based on filtering, we use waveform Newtonian approximate (NA) model constructed linearized theory to match injections determine coalescence time utilize frequency curve for fitting estimate...
A simple but necessary condition for cascading the multiple stages of an optical fractional Fourier transform with different variable scales is presented. That permits more flexibility in design information-processing systems that use transforms. We have expanded applications transforms adjustable scales.
We present a method based on maximum-likelihood estimation to calculate the threshold of number converted photoelectrons according Poisson and Gaussian statistics. The calculations for detection false-alarm probabilities are given including proposal error probability. An efficient approach setting laser flight time is discussed as power decreases in propagation. Comparison fixed varied statistics provided. tends keep probability at lowest level. This found have similar effect ranging...
Space-based gravitational wave (GW) detectors are expected to detect the stellar-mass binary black holes (SBBHs) inspiralling in low-frequency band, which exist several years before merger. Accurate GW waveforms inspiral phase crucial for detection and analysis of those SBBHs. In our study, based on post-Newtonian (PN) models, we investigate differences detection, accuracy requirement, parameter estimation SBBHs cases LISA, Taiji, their joint detection. We find that low-order PN models...
The theory of general relativity (GR) predicts the existence gravitational waves (GWs) with two tensor modes, while alternative theories propose up to six polarization modes. In this study, we investigate constraints on GW using a model-independent parametrized post-Einsteinian framework and consider both space- ground-based detectors. By evaluating capabilities network performance LISA, Taiji, TianQin, LIGO, Virgo, KAGRA, Einstein Telescope (ET), analyze their respective contributions....
The traditional phase coded lidar systems require the collection of every returned laser pulse and are restricted in range resolution by sampling frequency subpulse width. This paper proposes a reversed m-sequence acquisition method for signal detection. detector accumulates N − 1 bits emitted sequence to deduce Nth bit sequence. indoor experiment achieved 2 μs with period 28 employing 15-bit m-sequence. achieves an narrow width whereas is kept low. also presents imaging simulation, which...
A wedge liquid crystal (LC) cell is designed and manufactured, a dye-doping cholesteric LC laser formed by mutual diffusion of the with different pitches. that tunable in 558–624 nm range obtained under moderate optical pumping, tuning 66 spectral resolution 1 nm, so as to achieve spatial position wide lasers. The threshold varies at positions device, lasing thresholds 40 9 μm are 18 25 μJ/pulse, respectively. density photonic states simulated experimental sample, result good agreement band...
We demonstrate optical binary threshold logic by using an optoelectronic circuit. This gate is in itself a logical complete set owing to the availability of both positive and negative weights threshold. Furthermore, are optically addressed, thereby providing real-time operation. Experimental results AND, OR, MAJORITY functions three other arbitrary for input signals with single gate. Applications neural computing two-dimensional parallel processing discussed.
The bcc like structure of cubic bismuth phosphate (Bi 13.1 PO δ ) crystal, makes (111) facets hardly be exposed according to the Bravais rule. In this paper, we are focusing on exposure smooth and particularly process transforming stepped coarse by varying growth conditions, such as Bi: P ratio raw materials, pH values, EDTA concentrations, etc. results revealed that lower was beneficial with a rise ratio, transformed from surface surfaces. With moderate novel high index were derived facets,...
This paper presents an equivalent direct detection receiver model by statistical method which simplifies the random impulse responses of electrons counting returned signal, background radiation and dark current as a Gaussian process with high enough gain. An investigation based on distribution system output in ICCD scannerless range-gated Lidar is conducted calculations error probability, absolute relative error. As unique manipulated variable, optimized gains are calculated separately to...
There are tens of millions compact binary systems in the Milky Way, called galactic binaries (GBs), most which unresolved, and Gravitational waves (GWs) emitted overlap to form foreground confusion. By simulating such confusion, we have studied how LISA, Taiji TianQin, including their alternative orbital configurations, subtract resolvable GBs when they combine as some networks. The results our research indicate that order detected number for a single detector from high low is: Taiji-m,...