Pengubahan Radiasi Inframerah menjadi Radiasi Tampak dan Radiasi Tampak Menjadi Ultraviolet: Suatu Pembangkitan Harmonik Kedua  

Oleh:

Sulandari, Sri Agustini

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI
Dalam koleksi: SIGMA: Jurnal Sains dan teknologi vol. 3 no. 2 (Jul. 2000), page 169-175.
Topik: Second Harmonic Generation; Non-Linear Optics

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: SS25.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In classical linear optics it is assumed that the induced dielectric polarization of a medium is linearly related to the applied electric field. With the high electric fields involved in laser beams, the non-linear response leads to an exchange of energy between electromagnetic waves at different frequencies. One of the effects produced by a non-linear medium is the fact that the non-linear polarization term is proportional to the square of the electric field. This effect is called Second Harmonic Generation (SHG), in which a laser beam at frequency w is partially converted, in the non-linear material, to a coherent beam at frequency 2w. This technique is currently being used to generate new coherent wave at different frequency from that of the incoming wave.

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