Short-Wave infrared atmospheric scheimpflug lidar

Atmospheric dual-band Scheimpflug lidar is demonstrated at 980 and 1550 nm. Signals are compared during three weather conditions, and the spatio-temporal resolution of the atmospheric structure is considered. The potential for aerosol classification is evaluated, and future directions are discussed.

Download Full-text

Design of radial gradient-index lenses for dual-band visible to short-wave infrared imaging systems

Optical Engineering ◽

10.1117/1.oe.52.11.112106 ◽

2013 ◽

Vol 52 (11) ◽

pp. 112106 ◽

Cited By ~ 4

Author(s):

Anthony J. Visconti ◽

Julie L. Bentley

Keyword(s):

Infrared Imaging ◽

Short Wave ◽

Imaging Systems ◽

Dual Band ◽

Gradient Index ◽

Radial Gradient ◽

Short Wave Infrared

Download Full-text

InP-Based Near Infrared/Extended-Short Wave Infrared Dual-Band Photodetector

IEEE Photonics Technology Letters ◽

10.1109/lpt.2020.3008853 ◽

2020 ◽

Vol 32 (16) ◽

pp. 1003-1006

Author(s):

Zongheng Xie ◽

Zhuo Deng ◽

Xinbo Zou ◽

Baile Chen

Keyword(s):

Near Infrared ◽

Short Wave ◽

Dual Band ◽

Short Wave Infrared

Download Full-text

Development of water basin pollution emission inventory: a preliminary literature review and Its implication for China

Journal of Water Supply Research and Technology—AQUA ◽

10.2166/aqua.2020.071 ◽

2020 ◽

Author(s):

Shuchang Zhao ◽

Yi Liu ◽

Yaxin Liu ◽

Manli Gong

Keyword(s):

Temporal Resolution ◽

Recent Progress ◽

Emission Inventory ◽

Emission Inventories ◽

Future Directions ◽

Calibration And Validation ◽

Pollution Emission ◽

Inventory Development ◽

Spatio Temporal ◽

Decision Making Tool

Abstract The water pollution emission inventory is a fundamental decision-making tool that links emissions and water quality. However, accurately quantifying the emissions is challenging, due to the variety of contributing sources, complexity of methods for calibration and validation, and lack of moderate spatio-temporal resolution. Over the last two decades, tremendous efforts have been made to improve the accuracy of emission inventories, and significant improvements have been accomplished. This study summarizes the recent progress on inventory development, by recapping the sector-based configurations and associated coefficient databases. Subsequently, we highlight the calculation, validation, and spatio-temporal resolution of emissions contained in the present inventories. Finally, we suggest future directions for conducting a systematic procedure and further improving the accuracy of emission inventories.

Download Full-text

Performance of Dual-Band Short-Wave Infrared InGaAs Focal-Plane Arrays with Interference Narrow-Band Filter

Electronics ◽

10.3390/electronics8121537 ◽

2019 ◽

Vol 8 (12) ◽

pp. 1537

Author(s):

Honghai Deng ◽

Zhiliang Wang ◽

Haibao Shao ◽

Yi Li ◽

Xue Li ◽

...

Keyword(s):

Focal Plane ◽

Narrow Band ◽

Spectral Response ◽

Short Wave ◽

Interference Filter ◽

Focal Plane Arrays ◽

Dual Band ◽

Response Modulation ◽

Modulation Transfer ◽

Short Wave Infrared

In this work, we fabricated dual-band 800 × 2 short-wave infrared (SWIR) indium gallium arsenide (InGaAs) focal-plane arrays (FPAs) using N-InP/i-In0.53Ga0.47As/N-InP double-heterostructure materials, which are often applied in ocean-color remote sensing. Using narrow-band interference-filter integration, our detector-adopted planner structure produced two detection channels with center wavelengths of 1.24 and 1.64 μm, and a full-width half-maximum (FWHM) of 0.02 μm for both channels. The photoelectric characteristics of the spectral response, modulation transfer function (MTF), and detectability of the detector were further analyzed. Our FPAs showed good MTF uniformity with pixel operability as high as 100% for each 800 × 1 linear array. Peak detectivity reached 4.39 × 1012 and 5.82 × 1012 cm·Hz1/2/W at 278 K, respectively, and response nonuniformity was ideal at 2.48% and 2.61%, respectively. As a final step, dual-band infrared detection imaging was successfully carried out in push-broom mode.

Download Full-text