Abstract
APPLIED OPTICS Reducing the operating wavelength of laser diodes is desirable for a number of applications. Shorter wavelength enables the writing and reading of optical information at higher storage densities, as seen in the development of CD and DVD players over the past decade, in which the wavelength has decreased from infrared to blue. In addition, ultraviolet (UV) radiation at wavelengths below 390 nm can be used in fluorescence-based chemical and biological detection schemes. The development of suitable materials that can be electrically driven and operated at ambient temperatures has, however, presented a significant challenge. Providing an addition to the small selection of wide-bandgap materials, such as diamond, that emit in the UV, and one that the wafer growers may find more attractive to work with, Fischer et al. present results on UV-emitting AlGaN-based light-emitting diodes. Their devices can operate at room temperature and provide around a milliwatt of 290-nm UV light when biased at around 10 V and with an injection current of 300 mA. — ISO Appl. Phys. Lett. 84 , 3394 (2004).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
