Sains Malaysiana 40(1)(2011): 39–42

Application of Hybrid Polymer as a Two Dimensional Grating and It’s Lasing Characteristic

(Aplikasi Polimer Hibrid sebagai Parutan Dua Dimensi dan Ciri Lasernya)

Sahrul Hidayat¹*, P. Pitriana², R. Hidayat², Fitrilawati¹, A. Bahtiar¹, R.E. Siregar¹ & M. Ozaki³

¹Department of Physics, Faculty of Mathematics and Natural Science

University of Padjadjaran, Bandung West Jawa, Indonesia

²Department of Physics, Faculty of Mathematics and Natural Science

Bandung Institute of Technology, Bandung West Jawa, Indonesia

³Department of Electrical, Electronic and Information Engineering

Graduate School of Engineering, Osaka University, Osaka, Japan

Received: 7 December 2009 / Accepted: 13 July 2010

ABSTRACT

A two dimensional grating has been fabricated from hybrid polymer incorporated with organic dye-laser. The precursor hybrid polymers were synthesized from TMSPMA by sol-gel method. The precursor was mixed with photo-initiator to make sensitive with UV light. The photosensitive film was irradiated by laser interference of THG Nd-YAG laser (λ = 355 nm) yield 2D grating with hexagonal structure. The characteristic of lasing was investigated using strip-line excitation light of SHG Nd-YAG laser (λ = 532 nm). The lasing wavelengths are observed at 606 and 621 nm for grating period of 400 and 410 nm, respectively. The spectral width (FWHM) of lasing is about 3 nm at pumping power 14.88 mJ/pulse cm2.

Keywords: 2D-grating; hexagonal structure; hybrid polymer; laser

ABSTRAK

Parutan dua dimensi bahan polimer hibrid yand dicampur dengan dai-laser organik telah difabrkasi. Prekursor polimer hibrid disintesis daripada monomer TMSPMA dengan kaedah sol-gel. Prekursor polimer hibrid ditambah dengan foto-pemula sehingga menjadi sensitif terhadap cahaya ultraviolet. Filem polimer hibrid yang fotosensitif telah disinari dengan pembelauan laser THG Nd-YAG (λ = 355 nm), menghasilkan parutan dua dimensi dengan struktur heksagonal. Ciri laser dikaji dengan menggunakan garis strip pengujaan cahaya laser SHG Nd-YAG (λ = 532 nm). Panjang gelombang laser dicerap pada 606 dan 621 nm untuk kala parutan masing-masing pada 400 dan 410 nm. Lebar spektrum (FWHM) laser adalah sekitar 3 nm untuk daya pam 14,88 mJ/denyut cm2.

Kata kunci: laser; parutan dua dimensi; polimer hibrid; struktur heksagonal

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*Corresponding author; email: sahrulh@gmail.com