Frequency tripling mirror.

A frequency tripling mirror (FTM) is designed, fabricated and demonstrated. The mirror consists of an aperiodic sequence of metal oxide layers on a fused silica substrate tailored to produce the third harmonic in reflection. An optimized 25-layer structure is predicted to increase the reflected TH by more than five orders of magnitude compared to a single hafnia layer, which is a result of global compensation of the phase mismatch of TH and fundamental, field enhancement and design favoring reflection. Single pulse conversion efficiencies approaching one percent have been observed with the 25-layer stack for fundamental wavelengths in the near infrared and 55 fs pulse duration. The FTM is scalable to higher conversion, larger bandwidths and other wavelength regions making it an attractive novel nonlinear optical component based on optical interference coatings.

[1]  W. Rudolph,et al.  Characterization and χ(3) measurements of thin films by third-harmonic microscopy. , 2014, Optics letters.

[2]  Michael K. Trubetskov,et al.  Nonlinear absorbance in dielectric multilayers , 2015 .

[3]  Robert W Boyd,et al.  Dramatic enhancement of third-harmonic generation in three-dimensional photonic crystals. , 2004, Physical review letters.

[4]  N. Bloembergen,et al.  Interactions between light waves in a nonlinear dielectric , 1962 .

[5]  Jianhua Liu,et al.  Scaling laws of femtosecond laser pulse induced breakdown in oxide films , 2005 .

[6]  Wolfgang Rudolph,et al.  Modeling third-harmonic generation from layered materials using nonlinear optical matrices. , 2014, Optics express.

[7]  Razvan Stoian,et al.  Surface damage threshold and structuring of dielectrics using femtosecond laser pulses: the role of incubation , 1999 .

[8]  Carmen S. Menoni,et al.  Transient phenomena in the dielectric breakdown of HfO2 optical films probed by ultrafast laser pulse pairs , 2010 .

[9]  O. Shramkova,et al.  Harmonic generation and wave mixing in nonlinear metamaterials and photonic crystals (Invited paper) , 2012 .

[10]  J. Aitchison,et al.  Conversion efficiency for second-harmonic generation in photonic crystals , 2001 .

[11]  Igal Brener,et al.  Enhanced third-harmonic generation in silicon nanoparticles driven by magnetic response. , 2014, Nano letters.

[12]  V. Petrov,et al.  High-efficiency single-crystal third-harmonic generation in BiB₃O₆. , 2011, Optics letters.

[13]  I. Sagnes,et al.  Phase-matched frequency doubling at photonic band edges: efficiency scaling as the fifth power of the length. , 2002, Physical review letters.

[14]  Robert A Norwood,et al.  Enhancement of the third-order optical nonlinearity in ZnO/Al2O3 nanolaminates fabricated by atomic layer deposition , 2013 .

[15]  R. C. Miller,et al.  Optical Harmonic Generation in Single Crystal BaTiO 3 , 1964 .

[16]  Wolfgang Rudolph,et al.  Generic incubation law for laser damage and ablation thresholds , 2015 .

[17]  Detlev Ristau,et al.  Optical broadband monitoring of conventional and ion processes. , 2006, Applied optics.