Index of refraction and waveguiding in thin films of a conjugated polymer which exhibits stimulated emission

被引：23

作者：

Miller, EK ^{[1
]}

McGehee, MD

Diaz-Garcia, M

Srikant, V

Heeger, AJ

机构：

[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

SYNTHETIC METALS | 1999年 / 102卷 / 1-3期

关键词：

ellipsometry; amorphous thin films; poly (phenylene vinylene) and derivatives; waveguides;

D O I：

10.1016/S0379-6779(98)01377-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report variable angle spectroscopic ellipsometry (VASE) measurements on thin films of a soluble derivative of poly-paraphenylenevinylene (PPV) in the emission region of the spectrum. We find that the films are birefringent, with a higher and more dispersive index of refraction for light polarized with its electric field in the plane of the film. Physically, this anisotropy is explained by preferential in-plane orientation of the polymer chains; a result of this orientation is that on typical substrates such as glass and quartz, only transverse-electric waveguide modes propagate in the polymer, while transverse-magnetic modes are evanescent. The implications of these data for amplified spontaneous emission and design of in-plane laser structures are discussed.

引用

页码：1091 / 1092

页数：2

共 13 条

[1] VISIBLE-LIGHT EMISSION FROM SEMICONDUCTING POLYMER DIODES [J].

BRAUN, D ;

HEEGER, AJ .

APPLIED PHYSICS LETTERS, 1991, 58 (18) :1982-1984

[2] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].

BURROUGHES, JH ;

BRADLEY, DDC ;

BROWN, AR ;

MARKS, RN ;

MACKAY, K ;

FRIEND, RH ;

BURN, PL ;

HOLMES, AB .

NATURE, 1990, 347 (6293) :539-541

[3] Factors influencing stimulated emission from poly(p-phenylenevinylene) [J].

Denton, GJ ;

Tessler, N ;

Harrison, NT ;

Friend, RH .

PHYSICAL REVIEW LETTERS, 1997, 78 (04) :733-736

[4] Semiconducting polymers: A new class of solid-state laser materials [J].

Hide, F ;

DiazGarcia, MA ;

Schwartz, BJ ;

Andersson, MR ;

Pei, QB ;

Heeger, AJ .

SCIENCE, 1996, 273 (5283) :1833-1836

[5] OPTICAL DETERMINATION OF CHAIN ORIENTATION IN ELECTROLUMINESCENT POLYMER-FILMS [J].

MCBRANCH, D ;

CAMPBELL, IH ;

SMITH, DL ;

FERRARIS, JP .

APPLIED PHYSICS LETTERS, 1995, 66 (10) :1175-1177

[6] Semiconducting polymer distributed feedback lasers [J].

McGehee, MD ;

Diaz-Garcia, MA ;

Hide, F ;

Gupta, R ;

Miller, EK ;

Moses, D ;

Heeger, AJ .

APPLIED PHYSICS LETTERS, 1998, 72 (13) :1536-1538

[7]

MCGEHEE MD, IN PRESS PHYS REV B

[8] Ultrafast studies of stimulated emission and gain in solid films of conjugated polymers [J].

Schwartz, BJ ;

Hide, F ;

Andersson, MR ;

Heeger, AJ .

CHEMICAL PHYSICS LETTERS, 1997, 265 (3-5) :327-333

[9] Optical anisotropy in thin films of a blue electroluminescent conjugated polymer [J].

Sturm, J ;

Tasch, S ;

Niko, A ;

Leising, G ;

Toussaere, E ;

Zyss, J ;

Kowalczyk, TC ;

Singer, KD ;

Scherf, U ;

Huber, J .

THIN SOLID FILMS, 1997, 298 (1-2) :138-142

[10]

Tamir T., 1979, INTEGRATED OPTICS

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