scholarly journals All-fiber upconversion high spectral resolution wind lidar using a Fabry-Perot interferometer

2016 ◽  
Vol 24 (17) ◽  
pp. 19322 ◽  
Author(s):  
Mingjia Shangguan ◽  
Haiyun Xia ◽  
Chong Wang ◽  
Jiawei Qiu ◽  
Guoliang Shentu ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Fabry Perot ◽  
Wind Lidar

scholarly journals The Structure and Kinematics of the Ionized Gas In Centaurus A

1987 ◽  
Vol 127 ◽  
pp. 417-418
Author(s):  
J. Bland ◽  
K. Taylor ◽  
P. D. Atherton
Keyword(s):  
Spatial Resolution ◽  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Line Of Sight ◽  
Rotating Disc ◽  
Ionized Gas ◽  
Dust Lane ◽  
Data Cubes ◽  
Fabry Perot ◽  
Centaurus A

The TAURUS Imaging Fabry-Perot System (Taylor & Atherton 1980) has been used with the IPCS at the AAT to observe the ionized gas within NGC 5128 (Cen A) at [NII]λ6548 and Hα. Seven independent (x, y,λ) data cubes were obtained along the dust lane at high spectral resolution (30 km/s FWHM) and at a spatial resolution limited by the seeing (~1″). From these data, maps of the kinematics and intensities of the ionized gas were derived over a 420″ by 300″ region. The maps are the most complete to date for this object comprising 17500 and 5300 fitted spectra in Ha and [NII]λ6548 respectively. The dust lane system is found to be well understood in terms of a differentially rotating disc of gas and dust which is warped both along and perpendicular to the line-of-sight.

A high-spectral resolution tandem Fabry-Perot spectrometer for 17-micrometer wavelength

2006 ◽  
Author(s):  
Takahiro Nagayama ◽  
Tetsuya Nagata ◽  
Takahiro Zenno ◽  
Chie Nagashima ◽  
Mikio Kurita ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Fabry Perot

Development of a high spectral resolution lidar based on confocal Fabry–Perot spectral filters

2012 ◽  
Vol 51 (25) ◽  
pp. 6233 ◽  
Author(s):  
David S. Hoffman ◽  
Kevin S. Repasky ◽  
John A. Reagan ◽  
John L. Carlsten
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Spectral Filters ◽  
Fabry Perot ◽  
High Spectral Resolution Lidar

scholarly journals H2 2.12 μm Spectroscopy and Imaging of HH Objects

1989 ◽  
Vol 120 ◽  
pp. 302-302
Author(s):  
H. Zinnecker ◽  
R. Mundt ◽  
A. Moneti ◽  
T.R. Geballe ◽  
W.J. Zealey
Keyword(s):  
Spectral Resolution ◽  
High Spatial Resolution ◽  
Preliminary Test ◽  
High Spectral Resolution ◽  
Line Of Sight ◽  
Line Profiles ◽  
Ir Camera ◽  
Fabry Perot ◽  
Hh Objects ◽  
Hh Object

We have obtained high spectral resolution observations of a number of Herbig-Haro (HH) objects in the H2 v=1-0 S(1) line at 2.12μm. Objects observed included HH1/2, HH7-11, HH19, HH32A, HH40, and HH43, all associated with jet-like features or collimated optical outflows. Here we present velocity-resolved 2.12μm spectroscopy for HH40 (an HH-objects moving close to the line of sight) an for HH43B (an HH-object moving close to the plane of the sky). The full set of observations including interpretation is given in Zinnecker et al. (1989). We also present high spatial resolution H2 2.12μm images of HH40 and HH43. The 2.12μm H2 line profiles were obtained with the UKIRT infrared Fabry-Perot system (effective resolution 30-35 km/s) using a diaphragm of diameter 11” for both HH40 and HH43. The H2 images were obtained with the IR-array imager at the CTIO 1.5m telescope through a narrowband filter centred on the v=1-0 S(1) line. The IR-camera used had 58x62 pixels and a resolution of 0.9”/pixel. The exposure time was 2x120sec and 5x60sec for HH40 and HH43, respectively. The images are sky subtracted, but not fiat fielded, and should be viewed as preliminary test images.

scholarly journals Compact high-power shipborne doppler lidar based on high spectral resolution techniques

2018 ◽  
Vol 176 ◽  
pp. 01020
Author(s):  
Songhua Wu ◽  
Bingyi Liu ◽  
Guangyao Dai ◽  
Shenguang Qin ◽  
Jintao Liu ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Power ◽  
Wind Field ◽  
Frequency Measurement ◽  
High Spectral Resolution ◽  
Doppler Lidar ◽  
Preliminary Results ◽  
Injection Seeding ◽  
Wind Lidar ◽  
Doppler Wind Lidar

The Compact High-Power Shipborne Doppler Wind Lidar (CHiPSDWiL) based on highspectral-resolution technique has been built up at the Ocean University of China for the measurement of the wind field and the properties of the aerosol and clouds in the troposphere. The design of the CHiPSDWiL including the transceiver, the injection seeding, the locking and the frequency measurement will be presented. Preliminary results measured by the CHiPSDWiL are provided.

A newly designed high-spectral-resolution Rayleigh temperature lidar based on two-stage Fabry–Perot interferometer

2018 ◽  
Vol 65 (14) ◽  
pp. 1658-1667
Author(s):  
Fahua Shen ◽  
Zhifeng Shu ◽  
Wenjuan Shi ◽  
Bangxin Wang ◽  
Chenbo Xie ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Two Stage ◽  
Fabry Perot

scholarly journals High spectral resolution lidar using spherical Fabry-Perot to measure aerosol and atmospheric molecular density

2018 ◽  
Vol 176 ◽  
pp. 01016
Author(s):  
Caraty Yann ◽  
Hauchecorne Alain ◽  
Keckhut Philippe ◽  
Mariscal Jean-François ◽  
Dalmeida Eric
Keyword(s):  
Spectral Resolution ◽  
High Spectral Resolution ◽  
Temperature Profiles ◽  
Thermal Drift ◽  
Molecular Density ◽  
Fabry Perot ◽  
Validity Range ◽  
Optical Alignment ◽  
Rayleigh Lidar ◽  
High Spectral Resolution Lidar

In theory, the HSRL method should expand the validity range of the atmospheric molecular density and temperature profiles of the Rayleigh LIDAR in the UTLS below 30 km, with an accuracy of 1 K, while suppressing the particle contribution. We tested a Spherical Fabry-Perot which achieves these performances while keeping a big flexibility in optical alignment. However, this device has some limitations (thermal drift and a possible partial depolarisation of the backscattered signal).

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