Conversion of a low cost off-the-shelf spectrometer into a suitable instrument for deep tissue spectroscopy

Eric Wright; Keith St. Lawrence; Mamadou Diop

doi:10.1117/12.2005624

13 March 2013 Conversion of a low cost off-the-shelf spectrometer into a suitable instrument for deep tissue spectroscopy

Eric Wright, Keith St. Lawrence, Mamadou Diop

Author Affiliations +

Proceedings Volume 8573, Design and Quality for Biomedical Technologies VI; 85730V (2013) https://doi.org/10.1117/12.2005624
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

Efficient light collection is critical in noninvasive deep tissue spectroscopy since only a small fraction of the injected light emerges from any given finite area on the surface of the probed medium. Light collection can be improved by optimizing the contact area between the detection system and the probed medium by means of light guides with large detection areas. Since the form factor of these light guides do not match the entrance of commercial spectrometers, which are usually equipped with a narrow slit to improve their spectral resolution, deep tissue spectrometers are typically custom-built. However, off-the-shelf spectrometers have attractive advantages compared to custom-made units, such as low-cost, small foot-print and availability. In this report, we present simple modifications to an off-the-shelf spectrometer to convert it into a suitable instrument for deep tissue spectroscopy. The modified spectrometer was characterized and compared to a custom-built unit specifically designed for deep tissue spectroscopy. We also present in vivo measurements acquired simultaneously with the two spectrometers in a piglet model of newborn.

Citation Download Citation

Eric Wright, Keith St. Lawrence, and Mamadou Diop "Conversion of a low cost off-the-shelf spectrometer into a suitable instrument for deep tissue spectroscopy", Proc. SPIE 8573, Design and Quality for Biomedical Technologies VI, 85730V (13 March 2013); https://doi.org/10.1117/12.2005624

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Spectroscopy

Tissue optics

Sensors

Spectroscopes

Charge-coupled devices

Interference (communication)

In vivo imaging

Show All Keywords

Keywords/Phrases

Search In:

Publication Years