We have recently published our new research, conducted by Xiyuan, on the development of microresonator optical parametric oscillators (OPOs) in which a near-infrared pump laser creates any one of a set of distinct colors.
Green, yellow, orange, and red wavelengths are acccessed by a small adjustment of the pump laser frequency and resonator size. Such behavior has been obtained through careful tailoring of the dispersion of the silicon nitride (Si3N4) ring resonator. Check out the paper that has been published in the latest issue of Optica!
Lu, X., G. Moille, A. Rao, D. A. Westly, and K. Srinivasan, "On-chip optical parametric oscillation into the visible: generating red, orange, yellow, and green from a near-infrared pump", Optica, vol. 7, pp. 1417–1425, Oct, 2020
In addition, several news outlets have picked up the paper and showcased it!
- "What Laser Color Do You Like?", NIST Tech Beat
- "What laser color do you like? — Microchip devices produce a wide range of hues", Science Daily
- "New microchip devices produce a wide range of laser hues", Phys.org
- "What laser color do you like?", Nanowerk
- "Lighting Up Lasers in Living Color", Optics and Photonics News