Title :
Spatially resolved thermal analysis of high power LEDs using thermoreflectance imaging
Author :
Al-hemyari, Kadhair ; Yan, Susu ; Summers, Joseph ; Hudgings, Janice
Author_Institution :
Phys. Dept., Mount Holyoke Coll., South Hadley, MA, USA
Abstract :
2D thermoreflectance images of light-emitting diodes (LEDs) show lateral temperature variation with contact design. Thermoreflectance imaging of LEDs is quantitatively compared with standard bulk temperature measurements. Encapsulation improves heat dissipation and reduces optical reabsorption heating.
Keywords :
cooling; encapsulation; heating; light emitting diodes; temperature measurement; thermal analysis; thermoreflectance; 2D thermoreflectance imaging; bulk temperature measurements; contact design; encapsulation; heat dissipation; high power LED; lateral temperature variation; light-emitting diodes; optical reabsorption heating; spatially resolved thermal analysis; Current measurement; Light emitting diodes; Optical surface waves; Surface waves; Temperature measurement; Thermoreflectance imaging; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
