Wepresent an efficient approach for producing a carrier-envelope phase controlled isolated attosecond
pulse by an optimized intense driving laser pulse. High-order harmonics are produced by
numerically solving the time-dependent Schrödinger equation for the one-dimensional hydrogen
atom in an ultrashort laser pulse. We define an efficient cost function to optimize the laser pulse by
a genetic algorithm scheme. Our approach produces single attosecond pulses with desired properties,
including the carrier-envelope phase, central frequency, and duration. Also, we analyze the
time–frequency profiles of the attosecond emissions to gain a deeper insight into the underlying
physical mechanism.