Exposure of semiconductor-doped glasses to above-band-gap focused cw laser radiation results in the controllable formation of microlenses. A laser-driven thermal runaway is proposed to explain the low powers required for the process. A linear array of eight identically prepared microlenses is characterized and shown to exhibit diffraction-limited performance.
© 1995 Optical Society of America
Original Manuscript: June 28, 1995
Published: November 1, 1995
G. Beadie and N. M. Lawandy, "Single-step laser fabrication of refractive microlenses in semiconductor-doped glasses," Opt. Lett. 20, 2153-2155 (1995)