Authors

P. T. Lin; V. Singh; J. F. Wang; H. T. Lin; J. J. Hu; K. Richardson; J. D. Musgraves; I. Luzinov; J. Hensley; L. C. Kimerling;A. Agarwal

Comments

Authors: contact us about adding a copy of your work at [email protected]

Abbreviated Journal Title

Opt. Mater. Express

Keywords

WAVE INFRARED REGION; SILICON; GUIDES; CHIP; PHOTOCONDUCTIVITY; DETECTORS; SENSORS; Materials Science, Multidisciplinary; Optics

Abstract

CMOS compatible mid-Infrared (mid-IR) microphotonics including (1) broadband SOUP (Silicon on Oxide Undercladding Pedestal) waveguides; and (2) mid-IR transparent chalcogenide glass (ChGs) waveguides monolithically integrated with a PbTe thin film photodetector; are demonstrated. Using a pedestal undercladding geometry we obtain an optical loss for our Si waveguide which is 10 dB/cm lower compared to other waveguides using planar SiO2 cladding at lambda = 5 mu m, and a fundamental mode is seen over a broad mid-IR spectral range. To realize a fully integrated mid-IR on-chip system, in parallel, we develop PbTe thin film detectors that can be deposited on various mid-IR platforms through a thermal evaporation technique, offering high photoresponsivity of 25 V/W from lambda = 1 mu m to 4 mu m. The detector can be efficiently integrated, using a suitable spacer, to an underlying Chalcogenide glass (ChGs) waveguide. Our results of low loss waveguides and integrated thin film detectors enable Si-CMOS microphotonics for mid-IR applications.

Journal Title

Optical Materials Express

Volume

3

Issue/Number

9

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

1474

Last Page

1487

WOS Identifier

WOS:000323944700029

ISSN

2159-3930

Download

Share

COinS
 

Accessibility Statement

This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.