Abstract
Light-induced changes in the absorption of a multiple quantum well hetero n-i-p-i structure at room temperature have been measured using a pump-probe method. Changes in the absorption coefficient in the quantum wells of more than 2000 cm-1 have been observed with pump intensities as small as 375 mW/cm2. Corresponding changes in the index of refraction of ≈0.02 have been calculated.
Original language | English (US) |
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Pages (from-to) | 637-639 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 52 |
Issue number | 8 |
DOIs | |
State | Published - 1988 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)