Second harmonic generation (SHG) from resonant GaAs gratings
| dc.contributor.author | de Ceglia, D. | |
| dc.contributor.author | DโAguanno, G. | |
| dc.contributor.author | Mattiucci, N. | |
| dc.contributor.author | Vincenti, M.A. | |
| dc.contributor.author | Scalora, M. | |
| dc.date.accessioned | 2020-05-20T16:28:31Z | |
| dc.date.available | 2020-05-20T16:28:31Z | |
| dc.date.issued | 2011-05-22 | |
| dc.description | European Quantum Electronics Conference 2011, Munich Germany, 22โ26 May 2011 | en_US |
| dc.description.abstract | We study SHG in nonlinear (NL), GaAs gratings. We find large enhancement of conversion efficiency when the pump field excites the guided mode resonances (GMRs) [1] of the grating. Under these circumstances the spectrum near the pump wavelength displays sharp resonances characterized by dramatic enhancements of local fields and favorable conditions for second harmonic generation, even in regimes of strong linear absorption at the SH wavelength thanks to the phase-locked (PL) component of the SH [2]. In particular, in a GaAs grating pumped at 1064nm, we predict SH conversion efficiencies approximately five orders of magnitude larger than conversion rates achievable in either bulk or etalon structures of the same materials [3]. In Fig.1a) we sketch the geometry under consideration and in Fig.1b) we calculate the forward SH conversion efficiency ๐=๐โโ/๐ยฒ๐น๐น as function of the grating thickness W and compare it with the conversion efficiency of a bulk GaAs and with the conversion efficiency of an etalon GaAs placed in vacuo. The pump field incident at 100 on the grating is TE-polarized and the generated SH is also TE-polarized. This is a typical experimental configuration for SHG in GaAs [2]. | en_US |
| dc.description.uri | https://www.osapublishing.org/abstract.cfm?uri=EQEC-2011-EF2_5 | en_US |
| dc.format.extent | 1 page | en_US |
| dc.genre | conference papers and proceedings | en_US |
| dc.identifier | doi:10.13016/m2amnt-5k5j | |
| dc.identifier.citation | de Ceglia, D.; et al.; Second harmonic generation (SHG) from resonant GaAs gratings; CLEO/Europe and EQEC 2011 Conference Digest OSA Technical Digest (CD) (Optical Society of America, 2011), paper EF2_5; https://www.osapublishing.org/abstract.cfm?uri=EQEC-2011-EF2_5 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/18680 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | OSA Publishing | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Computer Science and Electrical Engineering Department Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Second harmonic generation (SHG) from resonant GaAs gratings | en_US |
| dc.type | Text | en_US |