Up converting as a tool for laser protecting smart filters

Ariela Donval; Noam Gross; Eran Partouche; Tali Fisher; Moshe Oron

doi:10.1117/12.2300985

30 May 2018 Up converting as a tool for laser protecting smart filters

Ariela Donval, Noam Gross, Eran Partouche, Tali Fisher, Moshe Oron

Proceedings Volume 10627, Advanced Optics for Defense Applications: UV through LWIR III; 106270E (2018) https://doi.org/10.1117/12.2300985
Event: SPIE Defense + Security, 2018, Orlando, FL, United States

Abstract

Optical systems are susceptible to saturation or damage caused by high power lasers. The major issue is to find a mechanism to protect from laser threats without interfering with the optical system performances. This paper presents a new approach in exploiting the laser energy itself to enable a dynamic response of a protection filter. We discuss an up conversion mechanism in which two or more photons of the threatening laser are absorbed by an up converting molecule following an energy transfer to a molecule that is able to change its absorption spectra and absorb in that laser wavelength range, thus creating a dynamic filter limiting high power lasers while allowing high transmittance for low intensity light.

Conference Presentation

Citation Download Citation

Ariela Donval, Noam Gross, Eran Partouche, Tali Fisher, and Moshe Oron "Up converting as a tool for laser protecting smart filters", Proc. SPIE 10627, Advanced Optics for Defense Applications: UV through LWIR III, 106270E (30 May 2018); https://doi.org/10.1117/12.2300985

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