Capabilites and Reliability of LEDs and Laser Diodes

The interpretation of the DC characteristics of LED and laser diodes to address their failure analysis

The interpretation of the forward DC characteristics of LEDS and laser diodes is shown as a valuable tool to infer the internal structure of real devices and to address their analysis after failures. To this purpose, the selfconsistent I(V) DC transfer function for the ideal laser diode is introduced.

ICNIRP Statement ICNIRP STATEMENT ON LIGHT-EMITTING DIODES (LEDS) AND LASER DIODES: IMPLICATIONS FOR HAZARD ASSESSMENT

Light emitting diodes reliability review

0026-2714/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.microrel.2011.07.063 ⇑ Corresponding author at: CALCE Center for Adva University of Maryland, College Park, MD 20742, Un 5323; fax: +1 301 314 9269. E-mail address: [email protected] (M. Pecht). The increasing demand for light emitting diodes (LEDs) has been driven by a number of application categories, including display backligh...

Comparative effectiveness of light emitting diodes (LEDs) and Lasers in near infrared photoimmunotherapy

Near infrared photoimmunotherapy (NIR-PIT) is a new cancer treatment that combines the specificity of antibodies for targeting tumors with the toxicity induced by photosensitizers after exposure to near infrared (NIR) light. Herein we compare two NIR-light sources; light emitting diodes (LEDs) and Lasers, for their effectiveness in NIR-PIT. A photosensitizer, IRDye-700DX, conjugated to panitumu...

لیزر Ce:Nd:YAG با دمش دیود نورگسیل و سوییچ Q انفعالی

The experimental study of passively Q-switched, LED-pumped Ce:Nd:YAG laser is reported. The active medium is a 3 mm diameter laser rod with 60 mm length; it is optically pumped with four segments of blue LEDs at 460 nm, with each segment consisting of 32 single LEDs. The 14 cm length optical resonator with 2 dielectric mirrors and the reflectivity of 99 and 93 percent at 1064 nm produced more t...