Dhansak consumed for three days after the death of a near one. And dhansak is used to break this abstinence on the fourth day. Hence, dhansak is never prepared on auspicious occasions like festivals and weddings. Dhansak is made by cooking mutton cubes with a mixture of various lentils and vegetables. Traditionally, four lentils (arhar dal, Bengal gram or chana dal, red masoor dal and brown masoor dal) are used, but one or more of the lentils may be omitted or substituted. The vegetables include potato, tomato, brinjal, pumpkin and fenugreek leaves: again, substitutions, such as squash for pumpkin, and sweet
Femtosecond pulse shaping a bandwidth-limited pulse could be transformed into a chirped pulse (with a filter only acting on the phase) or into a more complex pulse (with the filter acting on both phase and amplitude). One can distinguish FT pulse shapers by their optical design: i.e., collinear shapers and transverse shapers, and by their programmability, i.e., static (or manually adjustable) shapers and programmable shapers. 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