検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

An STM for molecules and wide-bandgap crystal

分子及びwide-bandgap結晶に対する走査型トンネル顕微鏡

赤木 浩; Arissian, L.*; Bertrand, J. B.*; Corkum, P. B.*; Gertsvolf, M.*; Pavicic, D.*; Rayner, D. M.*; Smeenk, C.*; Staudte, A.*; Villeneuve, D. M.*; W$"o$rner, H. J.*

Akagi, Hiroshi; Arissian, L.*; Bertrand, J. B.*; Corkum, P. B.*; Gertsvolf, M.*; Pavicic, D.*; Rayner, D. M.*; Smeenk, C.*; Staudte, A.*; Villeneuve, D. M.*; W$"o$rner, H. J.*

走査型トンネル顕微鏡は、電子のトンネル確率の位置情報から、固体表面の詳細な情報を得ることができる。分子や結晶に対するイオン化確率を測定すれば、分子や結晶構造に関する情報を得ることができると考えられる。本研究では、実際にH$$_{2}$$, N$$_{2}$$, Br$$_{2}$$などの小分子に対するトンネルイオン化確率の分子配向依存性や、石英,サファイア,フッ化リチウムなどの固体に対する光透過率の偏光依存性を測定し、分子や結晶構造に関する情報が得られることを示した。

The paper is divided into four sections. In the first, using atomic ionization as the example, we describe how we can make measurements without re-collision. In the second section we show one approach to measuring the tunnelling probability as a function of molecular alignment using a correlation method. The third section concentrates on how small molecules can be aligned with short laser pulses. Once molecules can be aligned, we can also measure the tunnelling rate as a function of alignment by measuring the ionization probability with linearly polarized light. We use Br$$_{2}$$ and N$$_{2}$$ as examples. Finally we complete the circle, returning to solids. A traditional STM is confined to the surface of solids. Laser radiation does not suffer from this limitation in large band gap materials. One might expect that the ionization probability would change as a function of the angle between the light polarization and the crystal axis much as it does for a molecule. We complete our review by demonstrating that tunnelling can be used to identify the symmetry of a crystal - with micron spatial precision - anywhere in the bulk.

Access

:

- Accesses

InCites™

:

パーセンタイル:25.49

分野:Optics

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.