Title :
Direct and sensitive measurement of two-photon absorption cross sections
Author :
Tian, Pengfei ; Keusters, D. ; Warren, W.S.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
Summary form only given. We present a direct method to detect weak two-photon absorption (TPA) signals. As a proof of principle, we have measured the TPA cross section /spl delta/ for rhodamine 6G (R6G) in methanol and obtained a value which agrees with other results. The technique may be very useful in biomedical imaging.
Keywords :
biomedical optical imaging; nonlinear optics; two-photon processes; biomedical imaging; direct method; methanol; rhodamine 6G; sensitive measurement; two-photon absorption cross sections; weak two-photon absorption; Absorption; Doping; Frequency conversion; Laser beams; Nonlinear optics; Optical refraction; Optical sensors; Optical variables control; Photorefractive effect; Refractive index;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034187
