Optical Sensitizer for Low-Energy Laser Ignition of Propellants

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Researchers at Purdue University have developed a new optical sensitizer for low-energy laser ignition of propellants. Traditional ignition techniques such as hot-wire bridges and pyrotechnic charges can cause accidental sparking and ignitions. Purdue researchers have integrated a photosensitive component to optically sensitize propellants making them capable of energetic ignition under a laser. The flash band energy is found to be 5-8 J-cm^2 on average and in the presence of a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser of wavelength 1064 nm and 532 nm respectively were found to be as low as 0.6 J-cm^2. This new method can be implemented in igniter applications including for rocket engines, motor vehicles, and military and defense.

Technology Validation: The flash band energy of the new optical sensitizers when optically ignited under a Nd:YAG laser of wavelength 1064 nm and 532 nm respectively was found to be as low as 0.6 J-cm^2.

-Sustained Ignition
-Low Energy Ignition
-Optical Energy in Reaction

Potential Applications:
-Laser-Induced Ignition
-Rocket Engines
-Motor Vehicles
-Military and Defense
Apr 30, 2021
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org