1. We deduce the formula of the critical thickness of ablator, and put forward the rule of how the thickness of ablator affect the velocities and the stability of flyer.
2. The flyer design emphasizes conceptually and physically separate functions of light collection at a distance from the laser source, light concentration on the ablator, and autonomous steering.
3. The flyer design emphasizes conceptually and physically separate functions of light collection at a distance from the laser source, light concentration on the ablator, and autonomous steering.