Sambar (dish) powder. In Andhra Pradesh, it is called as "Pappu chaaru". Apart from dal and tamarind, vegetables used in preparing is few. Vegetables are onions, dosakaaya, bitter gourd and tomatoes. Sambar without lentils (but with vegetables, or dried or fresh fish) is called kuzhambu in Tamil Nadu. Sambar is usually served with steamed rice as one of the main courses of both formal and everyday south Indian cuisine. A two-course meal of sambar mixed with rice and eaten with some sort of vegetable side dish, followed by yoghurt mixed with rice, is a prime southern Indian staple. "Vada" sambar and "idli"
Femtosecond pulse shaping Femtosecond pulse shaping In optics, femtosecond pulse shaping refers to manipulations with temporal profile of an ultrashort laser pulse. Pulse shaping can be used to shorten/elongate the duration of optical pulse, or to generate complex pulses. Generation of sequences of ultrashort optical pulses is key in realizing ultra high speed optical networks, Optical Code Division Multiple Access (OCDMA) systems, chemical and biological reaction triggering and monitoring etc. Based on the requirement, pulse shapers may be designed to stretch, compress or produce a train of pulses from a single input pulse. The ability to produce trains of pulses with femtosecond or