2ND-HARMONIC GENERATION IN 450 NM REGION BY 2-FURYL METHACRYLIC ANHYDRIDE CRYSTAL

This paper describes blue second harmonic generation (SHG) by an organ ic crystal of 2-furyl methacrylic anhydride (FMA). It has short cut-of f wavelength of 380 nm and SHG coefficients at 1064 nm, d33 = 24 pm/V and d31 = 16 pm/V. In 900 nm region 90-degree phase-matched blue SHG i s observed using a Ti: Sapphire laser as a fundamental source. This cr ystal is not hygroscopic and does not exhibit sublimation at room temp erature. Fine polishing is also possible.