Multiphoton photoluminescence from GaN with tunable picosecond pulses

被引：38

作者：

Kim, D

Libon, IH

Voelkmann, C

Shen, YR

PetrovaKoch, V

机构：

[1] Department of Physics, University of California, Materials Sciences Division, Lawrence Berkeley Laboratory

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.55.R4907

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

UV photoluminescence (PL) from GaN thin films was observed by multiphoton excitation. The two-photon PL excitation spectrum near the band gap agrees with the theoretical two-photon-absorption spectrum. The pump-intensity dependence and the PL excitation spectrum in the infrared indicate the existence of midgap defect states around 1 eV above the valence band. This is confirmed by the PL excitation spectrum obtained with a two-color, two-photon excitation process.

引用

收藏

页码：R4907 / R4909

页数：3

相关论文

共 18 条

[1] NONDEGENERATE 2-PHOTON ABSORPTION-SPECTRA OF ZNSE, ZNS AND ZNO [J].

BOLGER, JA ;

KAR, AK ;

WHERRETT, BS ;

DESALVO, R ;

HUTCHINGS, DC ;

HAGAN, DJ .

OPTICS COMMUNICATIONS, 1993, 97 (3-4) :203-209

[2] Properties of the yellow luminescence in undoped GaN epitaxial layers [J].

Hofmann, DM ;

Kovalev, D ;

Steude, G ;

Meyer, BK ;

Hoffmann, A ;

Eckey, L ;

Heitz, R ;

Detchprom, T ;

Amano, H ;

Akasaki, I .

PHYSICAL REVIEW B, 1995, 52 (23) :16702-16706

[3] NONDEGENERATE 2-PHOTON ABSORPTION IN ZINC BLENDE SEMICONDUCTORS [J].

HUTCHINGS, DC ;

VANSTRYLAND, EW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1992, 9 (11) :2065-2074

[4] UV REFLECTIVITY OF GAN - THEORY AND EXPERIMENT [J].

LAMBRECHT, WRL ;

SEGALL, B ;

RIFE, J ;

HUNTER, WR ;

WICKENDEN, DK .

PHYSICAL REVIEW B, 1995, 51 (19) :13516-13532

[5] 2-PHOTON ABSORPTION WITH EXCITON EFFECT FOR DEGENERATE VALENCE BANDS [J].

LEE, CC ;

FAN, HY .

PHYSICAL REVIEW B, 1974, 9 (08) :3502-3516

[6] OPTICAL-PROPERTIES AND TEMPERATURE-DEPENDENCE OF THE INTERBAND-TRANSITIONS OF CUBIC AND HEXAGONAL GAN [J].

LOGOTHETIDIS, S ;

PETALAS, J ;

CARDONA, M ;

MOUSTAKAS, TD .

PHYSICAL REVIEW B, 1994, 50 (24) :18017-18029

[7] Nonlinear electroreflectance from gallium nitride using optical second-harmonic generation [J].

Miragliotta, J ;

Wickenden, DK .

PHYSICAL REVIEW B, 1996, 53 (03) :1388-1397

[8] OPTICAL 3RD-HARMONIC STUDIES OF THE DISPERSION IN (CHI)OVER-BAR((3)) FOR GALLIUM NITRIDE THIN-FILMS ON SAPPHIRE [J].

MIRAGLIOTTA, J ;

WICKENDEN, DK .

PHYSICAL REVIEW B, 1994, 50 (20) :14960-14964

[9] LINEAR-OPTICAL AND NONLINEAR-OPTICAL PROPERTIES OF GAN THIN-FILMS [J].

MIRAGLIOTTA, J ;

WICKENDEN, DK ;

KISTENMACHER, TJ ;

BRYDEN, WA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (08) :1447-1456

[10] LARGE-BAND-GAP SIC, III-V NITRIDE, AND II-VI ZNSE-BASED SEMICONDUCTOR-DEVICE TECHNOLOGIES [J].

MORKOC, H ;

STRITE, S ;

GAO, GB ;

LIN, ME ;

SVERDLOV, B ;

BURNS, M .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (03) :1363-1398