Study of electronic transitions by using attenuated total reflectance spectroscopy in the far-UV region

Yusuke Morisawa; Shin Tachibana; Masahiro Ehara; Yukihiro Ozaki

doi:10.1117/12.2238790

15 September 2016 Study of electronic transitions by using attenuated total reflectance spectroscopy in the far-UV region

Yusuke Morisawa, Shin Tachibana, Masahiro Ehara, Yukihiro Ozaki

Author Affiliations +

Proceedings Volume 9926, UV and Higher Energy Photonics: From Materials to Applications; 992604 (2016) https://doi.org/10.1117/12.2238790
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

The wavelength region shorter than 200 nm, far-ultraviolet (FUV) region, is very rich in information about the electronic states and structure of a molecule. Since the molar absorption coefficient is very high (∼10⁵ mol^-1 dm3 cm^-1) in the FUV region, the electronic states and structure mainly for gas molecules has been investigated for a long time. On the other hand, as to molecules in the condensed phase transmittance spectra could not measure because of high molecular density, and reflection spectroscopy has been used to observe spectra of solid samples in the FUV region. However, for liquid samples generally either absorption spectroscopy or specular reflection spectroscopy was difficult to observe. Accordingly, FUV spectroscopy for liquid samples has been a relatively undeveloped research area. To solve the above difficulties of FUV spectroscopy we have recently developed a totally new UV spectrometer based on attenuated total reflection (ATR) that enables us to measure spectra of liquid and solid samples in the 140–280 nm region. This paper shows the studies by the attenuated total reflection far-ultraviolet (ATR-FUV) spectroscopy. These investigations elucidate the electronic structure and electronic transition in the FUV region for molecules such as n- and branched alkanes, alcohols, ketones, amides, and nylons in the liquid or solid phase. The consistent assignments were performed with a help of quantum chemical calculation.

Conference Presentation

Citation Download Citation

Yusuke Morisawa, Shin Tachibana, Masahiro Ehara, and Yukihiro Ozaki "Study of electronic transitions by using attenuated total reflectance spectroscopy in the far-UV region", Proc. SPIE 9926, UV and Higher Energy Photonics: From Materials to Applications, 992604 (15 September 2016); https://doi.org/10.1117/12.2238790

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available