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Nanophotonics or nano-optics is the study of the behavior of light on the nanometer scale, and of the interaction of nanometer-scale objects with light. It is a branch of optics, optical engineering, electrical engineering, and nanotechnology. It often involves dielectric structures such as nanoantennas, or metallic components, which can transport and focus light via surface plasmon polaritons.
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Photonic molecules are a theoretical natural form of matter which can also be made artificially in which photons bind together to form "molecules". They were first predicted in 2007. Photonic molecules are formed when individual (massless) photons "interact with each other so strongly that they act as though they have mass". In an alternative definition, photons confined to two or more coupled optical cavities also reproduce the physics of interacting atomic energy levels, and have been termed as photonic molecules.
Juerg Leuthold is a full Professor at ETH Zurich, Switzerland.
Coherent Raman scattering (CRS) microscopy is a multi-photon microscopy technique based on Raman-active vibrational modes of molecules. The two major techniques in CRS microscopy are stimulated Raman scattering (SRS) and coherent anti-Stokes Raman scattering (CARS). SRS and CARS were theoretically predicted and experimental realized in the 1960s. In 1982 the first CARS microscope was demonstrated. In 1999, CARS microscopy using a collinear geometry and high numerical aperture objective were developed in Xiaoliang Sunney Xie's lab at Harvard University. This advancement made the technique more compatible with modern laser scanning microscopes. Since then, CRS's popularity in biomedical research started to grow. CRS is mainly used to image lipid, protein, and other bio-molecules in live or fixed cells or tissues without labeling or staining. CRS can also be used to image samples labeled with Raman tags, which can avoid interference from other molecules and normally allows for stronger CRS signals than would normally be obtained for common biomolecules. CRS also finds application in other fields, such as material science and environmental science.
References
- ↑ Urban, Alexander S.; Lutich, Andrey A.; Stefani, Fenando D.; Feldmann, Jochen (2010). "Laser Printing Single Gold Nanoparticles" (Free PDF download). Nano Letters. 10 (12): 4794–8. Bibcode:2010NanoL..10.4794U. doi:10.1021/nl1030425. PMID 20957994.
- ↑ Nedev, Spas; Urban, Alexander S.; Lutich, Andrey A.; Feldmann, Jochen (2011). "Optical Force Stamping Lithography" (Free HTML download from NIH.gov). Nano Letters. 11 (11): 5066–70. Bibcode:2011NanoL..11.5066N. doi:10.1021/nl203214n. PMC 3833036 . PMID 21992538.
- ↑ Zywietz, Urs; Evlyukhin, Andrey B.; Reinhardt, Carsten; Chichkov, Boris N. (2014). "Laser printing of silicon nanoparticles with resonant optical electric and magnetic responses". Nature Communications. 5: 3402. Bibcode:2014NatCo...5.3402Z. doi: 10.1038/ncomms4402 . PMID 24595073.
- ↑ Masui, Kyoko; Shoji, Satoru; Asaba, Kenji; Rodgers, Thomas C.; Jin, Feng; Duan, Xuan-Ming; Kawata, Satoshi (2011). "Laser fabrication of Au nanorod aggregates microstructures assisted by two-photon polymerization" (Free PDF download). Optics Express. 19 (23): 22786–96. Bibcode:2011OExpr..1922786M. doi: 10.1364/OE.19.022786 . PMID 22109158.
