2012 Fiscal Year Final Research Report
Observation of anomalous shift of x-ray wave packet by deformed crystal set near the Bragg reflection condition and its application to x-ray wave guides
| Project/Area Number |
21340086
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics I
|
|---|
| Research Institution | The Institute of Physical and Chemical Research |
|---|
Principal Investigator |
KOHMURA Yoshiki 独立行政法人理化学研究所, 放射光イメージング利用システム開発ユニット, ユニットリーダー (30270599)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TANAKA Yoshihito 独立行政法人理化学研究所, 物質系放射光利用システム開発ユニット, ユニットリーダー (80260222)
|
|---|
| Project Period (FY) |
2009 – 2012
|
| Keywords | X 線動的回折理論の新しい描像 / 全反射を伴わないX 線導波管 / 歪み結晶 / 極低発散角の出射光 / ダイヤモンド単結晶 / ヘテロエピタキシャル結晶 / ベリー位相項の観察 / 分散面のギャップ |
|---|
| Research Abstract |
We experimentally demonstrated an enhanced translation of an x-ray beam nearly parallel to the diffracting planes with mm order distance in a deformed silicon crystal. The combination of a nearby Bragg reflection and a strain field in the crystal allows a shift in the x-ray beam that scales as square of wavelength. For further precise control of x-ray beams, the atomic strain near the interface of hetero-epitaxial crystal was used. By illuminating x-rays onto the interface having thousands of quantum dots on the top, the x-rays were observed to be split into two directions both of which were repeatedly translated under hundreds of quantum dots.
|
