Details

Autor(en) / Beteiligte

• Saynatjoki, A.
• Karvonen, L.
• Riikonen, J.
• Kim, W.
• Mehravar, S.
• Norwood, R.
• Peyghambarian, N.
• Lipsanen, H.
• Kieu, K.

Titel

Third-harmonic and multiphoton excitation fluorescence microscopy of single and few layer graphene

Ist Teil von

• 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013, p.1-1

Ort / Verlag

IEEE

Erscheinungsjahr

2013

Quelle

IEL

Beschreibungen/Notizen

• Single- and few-layer graphene was studied with simultaneous third-harmonic and multiphoton-induced fluorescence microscopy. Both CVD grown and exfoliated graphene were studied [1,2]. The photo-thermal CVD growth was carried out on copper foils in a methane/hydrogen atmosphere, followed by a transfer process. Oxidized silicon substrates were used as the final substrate in both cases. The oxide thickness was 300 nm to achieve maximal contrast in optical microscope. Single- and few-layer graphene areas were identified using optical microscopy and Raman spectroscopy.