XAmp - Revision history

KevinYager at 13:49, 3 January 2018

2018-01-03T13:49:48Z

KevinYager at 13:47, 3 January 2018

2018-01-03T13:47:59Z

JulienLhermitte: /* References */

2017-07-13T14:25:48Z

‎References

JulienLhermitte: /* References */

2017-07-13T14:24:44Z

‎References

KevinYager at 22:01, 26 June 2017

2017-06-26T22:01:05Z

KevinYager at 21:59, 26 June 2017

2017-06-26T21:59:51Z

KevinYager: Created page with "'''Coherent X-ray Amplification''' ('''XAmp''') is a method that can be used to boost the scattering signal of a weakly-scattering entity above some noisy contaminating ..."

2017-06-26T21:59:31Z

Created page with "'''Coherent X-ray Amplification''' ('''XAmp''') is a method that can be used to boost the scattering signal of a weakly-scattering entity above some noisy contaminating ..."

New page

'''Coherent X-ray Amplification''' ('''XAmp''') is a method that can be used to boost the [[scattering]] signal of a weakly-scattering entity above some noisy contaminating [[background]]. The technique consists of bringing a specially-designed 'amplifier' nano-structure close to the sample of interest (within one coherence volume). The coherent interference between the sample of interest and the amplifier gives rise to an interference term in the scattering pattern seen on the detector. Even if the sample itself is too weak to be measured on its own (due to the background dominating), the interference term can be extremely strong (if the amplifier itself scatters strongly). As a result, the sample's scattering can be inferred from the measurable interference term.

The scattering from coherent interference involves three scattering terms :
# The scattering of the amplifier
# The scattering of the sample
# An interference term
This interference term encodes information about the sample, and may be amplified by increasing the amplifier signal strength (i.e. fabricating a more strongly scattering amplifier object). If a strong noisy background is present, then a sufficiently strong amplifier can actually increase the signal-to-noise of the measurement of the sample.

==References==
* Julien R. Lhermitte, Cheng Tian, Aaron Stein, Atikur Rahman, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] [http://journals.iucr.org/j/issues/2017/03/00/aj5285/index.html Robust X-ray angular correlations for the study of meso-structures] ''J. Appl. Cryst.'' '''2017''', 50(3). [https://doi.org/10.1107/S1600576717003946 doi: 10.1107/S1600576717003946]

* Julien R. Lhermitte, Aaron Stein, Cheng Tian, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017'''

@@ Line 10: / Line 10: @@
 *  Julien R. Lhermitte, Cheng Tian, Aaron Stein, Atikur Rahman, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] [http://journals.iucr.org/j/issues/2017/03/00/aj5285/index.html Robust X-ray angular correlations for the study of meso-structures] ''J. Appl. Cryst.'' '''2017''', 50(3). [https://doi.org/10.1107/S1600576717003946 doi: 10.1107/S1600576717003946]
-*  Julien R. Lhermitte, Aaron Stein, Cheng Tian,  Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017''' 4(5) [https://doi.org/10.1107/S2052252517008107]
+*  Julien R. Lhermitte, Aaron Stein, Cheng Tian,  Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] [http://journals.iucr.org/m/issues/2017/05/00/it5012/index.html Coherent Amplification of X-ray Scattering from Meso-structures] ''IUCrJ'' '''2017''' 4(5) [https://doi.org/10.1107/S2052252517008107 doi: 10.1107/S2052252517008107]
 ==See Also==
 * [[Correlation methods]]

@@ Line 10: / Line 10: @@
 *  Julien R. Lhermitte, Cheng Tian, Aaron Stein, Atikur Rahman, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] [http://journals.iucr.org/j/issues/2017/03/00/aj5285/index.html Robust X-ray angular correlations for the study of meso-structures] ''J. Appl. Cryst.'' '''2017''', 50(3). [https://doi.org/10.1107/S1600576717003946 doi: 10.1107/S1600576717003946]
-*  Julien R. Lhermitte, Aaron Stein, Cheng Tian,  Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017'''
+*  Julien R. Lhermitte, Aaron Stein, Cheng Tian,  Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017''' 4(5) [https://doi.org/10.1107/S2052252517008107]
 ==See Also==
 * [[Correlation methods]]

← Older revision		Revision as of 21:59, 26 June 2017
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	* Julien R. Lhermitte, Aaron Stein, Cheng Tian, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017'''		* Julien R. Lhermitte, Aaron Stein, Cheng Tian, Yugang Zhang, Lutz Wiegart, Andrei Fluerasu, Oleg Gang, and [[Kevin G. Yager]] Coherent Amplification of X-ray Scattering from Meso-structures ''IUCrJ'' '''2017'''
		+
		+	==See Also==
		+	* [[Correlation methods]]

@@ Line 6: / Line 6: @@
 # An interference term
 This interference term encodes information about the sample, and may be amplified by increasing the amplifier signal strength (i.e. fabricating a more strongly scattering amplifier object). If a strong noisy background is present, then a sufficiently strong amplifier can actually increase the [[signal-to-noise]] of the measurement of the sample.
 ==References==

@@ Line 1: / Line 1: @@
 '''Coherent X-ray Amplification''' ('''XAmp''') is a method that can be used to boost the [[scattering]] signal of a weakly-scattering entity above some noisy contaminating [[background]]. The technique consists of bringing a specially-designed 'amplifier' nano-structure close to the sample of interest (within one coherence volume). The coherent interference between the sample of interest and the amplifier gives rise to an interference term in the scattering pattern seen on the detector. Even if the sample itself is too weak to be measured on its own (due to the background dominating), the interference term can be extremely strong (if the amplifier itself scatters strongly). As a result, the sample's scattering can be inferred from the measurable interference term.
-The scattering from coherent interference involves three scattering terms :
+The scattering from coherent interference involves three scattering terms:
 # The scattering of the amplifier
 # The scattering of the sample