... (eV)1.55 m AbsorptioncoefficientPhoton energy Photodiodes – Communications, Bio- Sensings, Measurements and High- Energy Physics 24 Fig. 19. Measurements of two-dimensional response uniformity ... I. Kim, and H. Jeon, “Enhanced optical coupling performance in an In-GaAs photodiode integrated Photodiodes – Communications, Bio- Sensings, Measurements and High- Energy Physics 14 ... (X and Z in m), (b) (0, 200), (c) (0, 800), (d) (0, 1900), and (e) (-80, 300) labeled on the responsivity surface. Photodiodes – Communications, Bio- Sensings, Measurements and High- Energy...