Nonlinear optical dynamics in GaN and related materials

Amane Shikanai; Kouji Hazu; Takayuki Sota; Katsuo Suzuki; Yoichi Kawakami; Shigeo Fujita

doi:10.1117/12.473276

30 May 2003 Nonlinear optical dynamics in GaN and related materials

Amane Shikanai, Kouji Hazu, Takayuki Sota, Katsuo Suzuki, Yoichi Kawakami, Shigeo Fujita

Proceedings Volume 4992, Ultrafast Phenomena in Semiconductors VII; (2003) https://doi.org/10.1117/12.473276
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

The carrier dynamics in InGaN layers and InGaN multiquantum-well (MQW) structures were studied by employing the degenerate pump and probe, time-resolved photoluminescence (PL), and white-light pump and probe measurements. The results from degenerate pump and probe measurements showed that the internal field existed in undoped in InGaN but then was screened by the electrons supplied by the Si atoms in Si-doped InGaN. The rise time of Pl in InGaN MQW obtained using the upconversion method was very fast, below 1ps, the mechanism of which is due to the carrier-carrier interaction enhanced by the residual electrons. The ΔOD spectra in InGaN MQW observed in white-light pump and probe measurements indicated that the carrier temperature was substantially higher than the lattice temperature even at 40ps after pulsed photo-pumping.

Citation Download Citation

Amane Shikanai, Kouji Hazu, Takayuki Sota, Katsuo Suzuki, Yoichi Kawakami, and Shigeo Fujita "Nonlinear optical dynamics in GaN and related materials", Proc. SPIE 4992, Ultrafast Phenomena in Semiconductors VII, (30 May 2003); https://doi.org/10.1117/12.473276

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available