Acoustically induced optical second harmonic generation in InAs crystals

作者：Makowska Janusik M; Hruban A; Ebothe J; Kityk IV^*

来源：Crystal Research and Technology, 2005, 40(3): 259-263.

DOI：10.1002/crat.200410335

• InAs
• second harmonic

Acoustically induced optical second harmonic generation (AIOSHG) in InAs single crystals was investigated. With increasing acoustical power, the AIOSHG for fundamental CO laser light (lambda=7.1 mu m) increases and achieves its maximum value at acoustical power density about 1.70 W/cm(2). The value of the AIOSHG for InAs was substantially higher than for key inorganic photo-refractive and ferroelectrics materials. With decreasing temperature, the AIOSHG signal strongly increases below 42 K. The AIOSHG maxima were observed at acoustical frequencies ranged at 7-11 kHz. Comparing the obtained results with the acoustically induced IR spectra at low temperature, one can conclude that the observed effect is associated with acoustically-induced phase transformations.

• 出版日期2005-3