Configurable-bandwidth imaging spectrometer based on an acousto-optic tunable filter

2006 ◽  
Vol 77 (7) ◽  
pp. 073108 ◽  
Author(s):  
Joan Vila-Francés ◽  
Javier Calpe-Maravilla ◽  
Jordi Muñoz-Mari ◽  
Luis Gómez-Chova ◽  
Julia Amorós-López ◽  
...  
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

Nadir and omnidirectional limb imaging spectrometer based on acousto-optic tunable filter

2019 ◽  
Vol 437 ◽  
pp. 81-89 ◽  
Author(s):  
Xiaoheng Wang ◽  
Xing Zhong ◽  
Ruifei Zhu ◽  
Fang Gao
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

Configurable Passband Imaging Spectrometer Based on Acousto-optic Tunable Filter

2008 ◽  
pp. 206-217 ◽  
Author(s):  
Joan Vila-Francés ◽  
Luis Gómez-Chova ◽  
Julia Amorós-López ◽  
Javier Calpe-Maravilla
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

scholarly journals SWIR AOTF Imaging Spectrometer Based on Single-pixel Imaging

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 390 ◽  
Author(s):  
Huijie Zhao ◽  
Zefu Xu ◽  
Hongzhi Jiang ◽  
Guorui Jia
Keyword(s):  
Mercury Cadmium Telluride ◽  
Short Wave ◽  
Tunable Filter ◽  
Light Conditions ◽  
Acceptance Angle ◽  
Imaging Spectrometer ◽  
Light Passing ◽  
New Type ◽  
Weak Light ◽  
Single Pixel

An acousto-optic tunable filter (AOTF) is a new type of mono-wavelength generator, and an AOTF imaging spectrometer can obtain spectral images of interest. However, due to the limitation of AOTF aperture and acceptance angle, the light passing through the AOTF imaging spectrometer is weak, especially in the short-wave infrared (SWIR) region. In weak light conditions, the noise of a non-deep cooling mercury cadmium telluride (MCT) detector is high compared to the camera response. Thus, effective spectral images cannot be obtained. In this study, the single-pixel imaging (SPI) technique was applied to the AOTF imaging spectrometer, which can obtain spectral images due to the short-focus lens that collects light into a small area. In our experiment, we proved that the irradiance of a short-focus system is much higher than that of a long-focus system in relation to the AOTF imaging spectrometer. Then, an SPI experimental setup was built to obtain spectral images in which traditional systems cannot obtain. This work provides an efficient way to detect spectral images from 1000 to 2200 nm.

Acousto-optic tunable filter imaging spectrometer for NASA applications: breadboard demonstration

1990 ◽  
Author(s):  
Tien-Hsin Chao ◽  
Jeffrey W. Yu ◽  
Li-Jen Cheng ◽  
James L. Lambert
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

Aspheric Optical Design of an Imaging Spectrometer Based on Acousto-Optic Tunable Filter

2012 ◽  
Vol 32 (6) ◽  
pp. 0622002
Author(s):  
熊胜军 Xiong Shengjun ◽  
张颖 Zhang Ying ◽  
赵慧洁 Zhao Huijie ◽  
李旭东 Li Xudong ◽  
周鹏威 Zhou Pengwei
Keyword(s):  
Optical Design ◽  
Tunable Filter ◽  
Imaging Spectrometer

Calibration of imaging spectrometer based on acousto-optic tunable filter (AOTF)

2012 ◽  
Author(s):  
Rui Xu ◽  
Zhi-ping He ◽  
Hu Zhang ◽  
Yan-hua Ma ◽  
Zhong-qian Fu ◽  
...  
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

Development of a dual-path system for band-to-band registration of an acousto-optic tunable filter-based imaging spectrometer

2013 ◽  
Vol 38 (20) ◽  
pp. 4120 ◽  
Author(s):  
Huijie Zhao ◽  
Pengwei Zhou ◽  
Ying Zhang ◽  
Ziye Wang ◽  
Shaoguang Shi
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer ◽  
Path System

Research on imaging spectrometer using LC-based tunable filter

2012 ◽  
Author(s):  
Zhixue Shen ◽  
Jianfeng Li ◽  
Lixian Huang ◽  
Fei Luo ◽  
Yongquan Luo ◽  
...  
Keyword(s):  
Tunable Filter ◽  
Imaging Spectrometer

Imaging spectrometer using a liquid crystal tunable filter

1993 ◽  
Author(s):  
Thomas G. Chrien ◽  
Christopher Chovit ◽  
Peter J. Miller
Keyword(s):  
Liquid Crystal ◽  
Tunable Filter ◽  
Imaging Spectrometer
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