Hi all, I am looking for a micromachined pulsed IR source which can operate at temperatures of around 1200K with an operating frequency of around 50Hz or better. I have zeroed in on tungsten and PolySilicon. But for 1) Tungsten : i havent found any papers on pulsed Tungsten sources. 2) Polysilicon : I havent found much info on the reliability of Poly for pulsed IR sources. Sincerely, Saritha Yahoo! India Matrimony: Find your partner online.