scholarly journals Bolometric technique for high-resolution broadband microwave spectroscopy of ultra-low-loss samples

2004 ◽  
Vol 75 (1) ◽  
pp. 124-135 ◽  
Author(s):  
P. J. Turner ◽  
D. M. Broun ◽  
Saeid Kamal ◽  
M. E. Hayden ◽  
J. S. Bobowski ◽  
...  
Keyword(s):  
High Resolution ◽  
Microwave Spectroscopy ◽  
Low Loss

Low-Loss Images in a Stem/Tem Microscope

1976 ◽  
Vol 34 ◽  
pp. 496-497 ◽  
Author(s):  
David C. Joy ◽  
Dennis M. Maher
Keyword(s):  
High Resolution ◽  
Surface Topography ◽  
Beam Direction ◽  
Low Loss ◽  
Specimen Holder ◽  
Glancing Angle ◽  
High Resolution Images ◽  
Set Up ◽  
Conventional Manner ◽  
Objective Type

High-resolution images of the surface topography of solid specimens can be obtained using the low-loss technique of Wells. If the specimen is placed inside a lens of the condenser/objective type, then it has been shown that the lens itself can be used to collect and filter the low-loss electrons. Since the probeforming lenses in TEM instruments fitted with scanning attachments are of this type, low-loss imaging should be possible.High-resolution, low-loss images have been obtained in a JEOL JEM 100B fitted with a scanning attachment and a thermal, fieldemission gun. No modifications were made to the instrument, but a wedge-shaped, specimen holder was made to fit the side-entry, goniometer stage. Thus the specimen is oriented initially at a glancing angle of about 30° to the beam direction. The instrument is set up in the conventional manner for STEM operation with all the lenses, including the projector, excited.

High Resolution Low Loss Microscopy of Crystalline Surfaces

1980 ◽  
Vol 38 ◽  
pp. 162-163
Author(s):  
William Krakow ◽  
Alec N. Broers
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Surface Topography ◽  
Secondary Electron ◽  
Objective Lens ◽  
Surface Imaging ◽  
Low Loss ◽  
Fine Grained ◽  
Scanning Electron ◽  
Crystalline Surfaces

Low-loss scanning electron microscopy can be used to investigate the surface topography of solid specimens and provides enhanced image contrast over secondary electron images. A high resolution-condenser objective lens has allowed the low-loss technique to resolve separations of Au nucleii of 50Å and smaller dimensions of 25Å in samples coated with a fine grained carbon-Au-palladium layer. An estimate of the surface topography of fine grained vapor deposited materials (20 - 100Å) and the surface topography of underlying single crystal Si in the 1000 - 2000Å range has also been investigated. Surface imaging has also been performed on single crystals using diffracted electrons scattered through 10−2 rad in a conventional TEM. However, severe tilting of the specimen is required which degrades the resolution 15 to 100 fold due to image forshortening.

scholarly journals Using a multimode fiber as a high-resolution, low-loss spectrometer

2012 ◽  
Vol 37 (16) ◽  
pp. 3384 ◽  
Author(s):  
Brandon Redding ◽  
Hui Cao
Keyword(s):  
High Resolution ◽  
Multimode Fiber ◽  
Low Loss

scholarly journals Prospects for high-resolution microwave spectroscopy of methanol in a Stark-deflected molecular beam

2013 ◽  
Vol 111 (12-13) ◽  
pp. 1923-1930 ◽  
Author(s):  
Paul Jansen ◽  
Isabelle Kleiner ◽  
Congsen Meng ◽  
Ronald M. Lees ◽  
Maurice H.M. Janssen ◽  
...  
Keyword(s):  
High Resolution ◽  
Molecular Beam ◽  
Microwave Spectroscopy

scholarly journals Microsolvated complexes of ibuprofen as revealed by high-resolution rotational spectroscopy

2018 ◽  
Vol 20 (23) ◽  
pp. 15635-15640 ◽  
Author(s):  
P. Pinacho ◽  
A. Krin ◽  
C. Pérez ◽  
S. Zinn ◽  
J. C. López ◽  
...  
Keyword(s):  
High Resolution ◽  
Microwave Spectroscopy ◽  
Rotational Spectroscopy

Four conformers of microsolvated ibuprofen have been characterized using high-resolution microwave spectroscopy.

High-Resolution and Low-Loss All-Fiber Spectral Filters Based on Biconic Tapers

2017 ◽  
Vol 35 (24) ◽  
pp. 5381-5384 ◽  
Author(s):  
Sergio Celaschi ◽  
Gilliard N. Malheiros-Silveira
Keyword(s):  
High Resolution ◽  
Low Loss ◽  
Spectral Filters

Multimode Fiber as a High-Resolution, Low-Loss Spectrometer

2013 ◽  
Vol 24 (12) ◽  
pp. 51
Author(s):  
Brandon Redding ◽  
Sebastien Popoff ◽  
Hui Cao
Keyword(s):  
High Resolution ◽  
Multimode Fiber ◽  
Low Loss
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