Wavelength- and material-dependent absorption in GaAs and AlGaAs microcavities

被引：77

作者：

Michael, C. P. ^{[1
]}

Srinivasan, K.

Johnson, T. J.

Painter, O.

Lee, K. H.

Hennessy, K.

Kim, H.

Hu, E.

机构：

[1] CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA

[2] Univ Calif Santa Barbara, Calif Nanosyst Inst, Santa Barbara, CA 93106 USA

[3] CALTECH, Ctr Phys Informat, Pasadena, CA 91125 USA

[4] Univ Oxford, Dept Phys, Oxford OX1 3PU, England

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2435608

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The quality factors of modes in nearly identical GaAs and Al0.18Ga0.82As microdisks are tracked over three wavelength ranges centered at 980, 1460, and 1600 nm, with quality factors measured as high as 6.62x10(5) in the 1600 nm band. After accounting for surface scattering, the remaining loss is due to sub-band-gap absorption in the bulk and on the surfaces. The observed absorption is, on average, 80% greater in AlGaAs than in GaAs and is 540% higher in both materials at 980 nm than at 1600 nm. (c) 2007 American Institute of Physics.

引用

收藏

页数：3

相关论文

共 22 条

[1] High-Q photonic nanocavity in a two-dimensional photonic crystal [J].

Akahane, Y ;

Asano, T ;

Song, BS ;

Noda, S .

NATURE, 2003, 425 (6961) :944-947

[2] Beyond the Rayleigh scattering limit in high-Q silicon microdisks:: theory and experiment [J].

Borselli, M ;

Johnson, TJ ;

Painter, O .

OPTICS EXPRESS, 2005, 13 (05) :1515-1530

[3] Measuring the role of surface chemistry in silicon microphotonics [J].

Borselli, M ;

Johnson, TJ ;

Painter, O .

APPLIED PHYSICS LETTERS, 2006, 88 (13)

[4] Rayleigh scattering, mode coupling, and optical loss in silicon microdisks [J].

Borselli, M ;

Srinivasan, K ;

Barclay, PE ;

Painter, O .

APPLIED PHYSICS LETTERS, 2004, 85 (17) :3693-3695

[5] Quantum state transfer and entanglement distribution among distant nodes in a quantum network [J].

Cirac, JI ;

Zoller, P ;

Kimble, HJ ;

Mabuchi, H .

PHYSICAL REVIEW LETTERS, 1997, 78 (16) :3221-3224

[6] A direct analysis of photonic nanostructures [J].

Englund, D ;

Vuckovic, J .

OPTICS EXPRESS, 2006, 14 (08) :3472-3483

[7] EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS [J].

FANO, U .

PHYSICAL REVIEW, 1961, 124 (06) :1866-&

[8] High-Q wet-etched GaAs microdisks containing InAs quantum boxes [J].

Gayral, B ;

Gérard, JM ;

Lemaitre, A ;

Dupuis, C ;

Manin, L ;

Pelouard, JL .

APPLIED PHYSICS LETTERS, 1999, 75 (13) :1908-1910

[9] The influence of single-photon absorption on the performance of the two-photon waveguide autocorrelator [J].

Karkhanehchi, MM ;

Barrow, DA ;

Bryce, AC ;

Hamilton, CJ ;

Marsh, JH .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1997, 33 (06) :933-937

[10] Estimating surface-roughness loss and output coupling in microdisk resonators [J].

Little, BE ;

Chu, ST .

OPTICS LETTERS, 1996, 21 (17) :1390-1392