INFRARED OPTICAL CHARACTERIZATION OF INAS/GA1-XINXSB SUPERLATTICES

被引：99

作者：

MILES, RH ^{[1
]}

CHOW, DH ^{[1
]}

SCHULMAN, JN ^{[1
]}

MCGILL, TC ^{[1
]}

机构：

[1] CALTECH,TJ WATSON SR LAB APPL PHYS,PASADENA,CA 91125

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 08期

关键词：

D O I：

10.1063/1.103425

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

InAs/Ga1-xInxSb superlattices have been examined by photoluminescence, photoconductivity, and infrared optical transmission. Samples display clear photoconductive thresholds at energies in agreement with band gaps derived from photoluminescence. Far-infrared energy gaps (8-14 μm and beyond) are obtained for InAs/Ga0.75In0.25Sb superlattices with periods <75 Å, in good agreement with gaps calculated from a simple two-band model. An absorption coefficient of ∼2000 cm-1 at 10 μm is measured in a superlattice with an energy gap of 11.4 μm. The magnitude and shape of this absorption edge is comparable to that of bulk Hg1-xCdxTe, suggesting that infrared detectors based on InAs/Ga1-xInxSb superlattices may be competitive in the 8-14 μm range and beyond.

引用

页码：801 / 803

页数：3

共 11 条

[1] OPTICAL-ABSORPTION AND X-RAY-DIFFRACTION IN NARROW-BAND-GAP INAS/GASB SUPERLATTICES [J].

ARCH, DK ;

WICKS, G ;

TONAUE, T ;

STAUDENMANN, JL .

JOURNAL OF APPLIED PHYSICS, 1985, 58 (10) :3933-3935

[2] INFRARED-ABSORPTION MEASUREMENT AND ANALYSIS OF HGTE-CDTE SUPERLATTICES [J].

BAUKUS, JP ;

HUNTER, AT ;

MARSH, OJ ;

JONES, CE ;

WU, GY ;

HETZLER, SR ;

MCGILL, TC ;

FAURIE, JP .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1986, 4 (04) :2110-2113

[3] OBSERVATION OF SEMICONDUCTOR-SEMIMETAL TRANSITION IN INAS-GASB SUPER-LATTICES [J].

CHANG, LL ;

KAWAI, N ;

SAIHALASZ, GA ;

LUDEKE, R ;

ESAKI, L .

APPLIED PHYSICS LETTERS, 1979, 35 (12) :939-942

[4] GROWTH AND CHARACTERIZATION OF INAS/GA1-XINXSB STRAINED-LAYER SUPERLATTICES [J].

CHOW, DH ;

MILES, RH ;

SODERSTROM, JR ;

MCGILL, TC .

APPLIED PHYSICS LETTERS, 1990, 56 (15) :1418-1420

[5]

CHOW DH, IN PRESS J VAC SCI B

[6] LONG-WAVELENGTH INFRARED DETECTORS BASED ON STRAINED INAS-GA1-XINXSB TYPE-II SUPERLATTICES [J].

MAILHIOT, C ;

SMITH, DL .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1989, 7 (02) :445-449

[7]

NIEH CW, UNPUB

[8] INTERFACE STRUCTURE AND OPTICAL-PROPERTIES OF QUANTUM-WELLS AND QUANTUM BOXES [J].

PETROFF, PM ;

CIBERT, J ;

GOSSARD, AC ;

DOLAN, GJ ;

TU, CW .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1987, 5 (04) :1204-1208

[9] PROPOSAL FOR STRAINED TYPE-II SUPERLATTICE INFRARED DETECTORS [J].

SMITH, DL ;

MAILHIOT, C .

JOURNAL OF APPLIED PHYSICS, 1987, 62 (06) :2545-2548

[10] BARRIER-WIDTH DEPENDENCE OF OPTICAL-TRANSITIONS INVOLVING UNCONFINED ENERGY-STATES IN GAAS-ALXGA1-XAS SUPERLATTICES [J].

SONG, JJ ;

YOON, YS ;

FEDOTOWSKY, A ;

KIM, YB ;

SCHULMAN, JN ;

TU, CW ;

HUANG, D ;

MORKOC, H .

PHYSICAL REVIEW B, 1986, 34 (12) :8958-8962

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