Nonreciprocal second harmonic generation in a magnetoelectric material

Second-harmonic generation

The goal of this experiment in nonlinear optics is to study the conversion of a (very small) fraction of laser light from its original wavelength of 980 nm (i.e. invisible to the naked eye) to its second-harmonic at a wavelength of 490 nm. This conversion takes place by mild focussing of an intense laser beam in a nonlinear birefringent crystal of BBO (= β BaBO4). You will study the physical pr...

Second harmonic generation in a photonic crystal

Interferometric second harmonic generation microscopy.

We describe a novel second harmonic generation (SHG) microscope that employs heterodyne detection by interfering the epi directed SHG from a sample with SHG from a reference crystal. In addition, the microscope provides complementary reflectance information based on optical coherence microscopy (OCM). The instrument features dual balanced detection to minimize the effect of source fluctuations,...

X-ray second harmonic generation.

We report clear experimental evidence for second harmonic generation at hard x-ray wavelengths. Using a 1.7 Å pumping beam generated by a free electron laser, we observe second harmonic generation in diamond. The generated second harmonic is of order 10 times the background radiation, scales quadratically with pump pulse energy, and is generated over a narrow phase-matching condition. Of import...

Second-harmonic generation by a graphene nanoparticle

Daria A. Smirnova,1 Ilya V. Shadrivov,1 Andrey E. Miroshnichenko,1 Alexander I. Smirnov,2,3 and Yuri S. Kivshar1 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia 2Lobachevsky State University, Nizhny Novgorod 603950, Russia 3Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia...