Photoinduced molecular orientation in bulk azodye-doped polymer by nonresonant femtosecond laser pulses

Jinhai Si; Jianrong Qiu; Kazuyuki Hirao

doi:10.1117/12.516686

12 May 2004 Photoinduced molecular orientation in bulk azodye-doped polymer by nonresonant femtosecond laser pulses

Jinhai Si, Jianrong Qiu, Kazuyuki Hirao

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.516686
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

We show two kinds of photoinduced molecular orientations in bulk azodye-doped polymers: photoinduced molecular orientation with centrosymmetry and photoinduced molecular orientation with noncentrosymmetry. For the photoinduced molecular orientation with centrosymmetry, the samples were irradiated with a linearly polarized femtosecond laser whose wavelength (800 nm) was out of the absorption range of the azodye molecules. This photoinduced molecular orientation with centrosymmetry resulted in a birefringence in the sample, based on which an optical image storage was demonstrated. The probe transmittance for the induced birefringence was estimated to be 92%. For the photoinduced molecular orientation with noncentrosymmetry, the sample was irradiated simultaneously by coherent superposition of the 1500-nm fundamental and 750-nm second-harmonic light of a femtosecond laser. The second-harmonic generation (SHG) conversion efficiency of a 105-μm thick film was estimated to be about 2%.

Citation Download Citation

Jinhai Si, Jianrong Qiu, and Kazuyuki Hirao "Photoinduced molecular orientation in bulk azodye-doped polymer by nonresonant femtosecond laser pulses", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.516686

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