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M. J. R. Martyak

Bio: M. J. R. Martyak is an academic researcher. The author has contributed to research in topics: Photoluminescence excitation & Microlens. The author has an hindex of 1, co-authored 1 publications receiving 2 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, an optical fiber-based apparatus for measuring photoluminescence spectra has been demonstrated, using a variable ratio fiber directional coupler and an integral fiber microlens.
Abstract: An optical‐fiber‐based apparatus for measuring photoluminescence spectra has been demonstrated. The use of a variable ratio fiber directional coupler and an integral fiber microlens greatly simplifies the optical system for both photoluminescence excitation and collection and permits the attainment of high output power densities (40 kW/cm2) for modest fiber input powers (<5 mW). Spectra from several III‐V semiconductor samples are shown which illustrate the sensitivity of the apparatus.

2 citations


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10 citations

Journal ArticleDOI
TL;DR: In this article, an optical fiber was used to carry both the excitation beam and the luminescence from the sample. And the optical fiber made the system very versatile and suitable for sensitive measurements, and the collection efficiency of the setup was demonstrated to be the same as that of a conventional setup.
Abstract: We describe a novel photoluminescence measurement apparatus which incorporates an optical fiber for carrying both the excitation beam and the luminescence from the sample. The advantages of the optical fiber makes the system very versatile and suitable for sensitive measurements. The collection efficiency of the setup is demonstrated to be the same as that of a conventional setup. Several photoluminescence spectra of III‐V compounds recorded using the apparatus are also included to demonstrate its applicability over a wide wavelength range (0.8–2.0 μm).

3 citations