Table 2. Material constants and equations used as input for the thermal response simulations and calculations.
Thermal constants were taken from Sealy (1993 ▸), Tiwari (1992 ▸) and Ng (2015 ▸), and optical constants from Adachi (1989 ▸) and Rakić & Majewski (1996 ▸).
| GaAs | InAs | AlAs | |
|---|---|---|---|
| Absorption coefficient (cm−1) | 1.8 × 103 | 14.8 × 103 | 3.4 |
| Thermal conductivity (W K−1 m−1) | κ(T) = κ300(T/300[K])−α | ||
| Constant κ300 (W K−1 m−1) | 45.5 | 37 | 80 |
| Exponent α | 1.3 | 1.1 | 1.4 |
| Specific heat (J K−1 kg−1) | c(T) = c 300 + c s{[(T/300)β − 1]/[(T/300)β + (c s/c 300)]} | ||
| Constant c 300 | 322 | 394 | 441 |
| Constant c s | 50 | 50 | 50 |
| Exponent β | 1.6 | 1.95 | 1.2 |