Characterization of the diffraction properties of quantum-dot-array diffraction grating.
A new dispersive element named as quantum-dot-array diffraction grating [L. F. Cao, China patent No. 200410081499 (August 10, 2004)] for visible light has been developed and characterized experimentally. A large number of quantum dots distributed on a substrate as sinusoidal function can be used to diffract x rays without higher-order diffraction. The experimental patterns show that the higher-order diffractions which inevitably exist in the spectrum recorded using traditional diffraction gratings can be eliminated effectively by this newly designed element. It indicates that quantum-dot-array diffraction grating could be an attractive alternative of presently used diffraction grating in soft x-ray spectroscopy application to get rid of the higher-order diffraction distortions.
Wang
Chuanke
C
National Key Laboratory of Laser Fusion, Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang, Sichuan 621900, People's Republic of China. wck810818@126.com
Kuang
Longyu
L
Wang
Zhebin
Z
Liu
Shenye
S
Ding
Yongkun
Y
Cao
Leifeng
L
Foerster
Eckhart
E
Wang
Deqiang
D
Xie
Changqing
C
Ye
Tianchun
T
D004867:Equipment Design; D019544:Equipment Failure Analysis; D045663:Quantum Dots; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers