Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Low-threshold Raman laser from an on-chip, high-Q, polymer-coated microcavity

Not Accessible

Your library or personal account may give you access

Abstract

We study the stimulated Raman emission of a high-Q polydimethylsiloxane (PDMS)-coated silica microsphere on a silicon chip. In this hybrid structure, as the thickness of the PDMS coating increases, the spatial distribution of the whispering gallery modes moves inside the PDMS layer, and the light emission switches from silica Raman lasing to PDMS Raman lasing. The Raman shift of the PDMS Raman laser is measured at 2900cm1, corresponding to the strongest Raman fingerprint of bulk PDMS material. The threshold for this PDMS Raman lasing is demonstrated to be as low as 1.3 mW. This type of Raman emission from a surface-coated high-Q microcavity not only provides a route for extending lasing wavelengths, but also shows potential for detecting specific analytes.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultralow-threshold microcavity Raman laser on a microelectronic chip

T. J. Kippenberg, S. M. Spillane, D. K. Armani, and K. J. Vahala
Opt. Lett. 29(11) 1224-1226 (2004)

Low-threshold microlaser in a high-Q asymmetrical microcavity

Y.-F. Xiao, C.-H. Dong, C.-L. Zou, Z.-F. Han, L. Yang, and G.-C. Guo
Opt. Lett. 34(4) 509-511 (2009)

Low threshold anti-Stokes Raman laser on-chip

Hyungwoo Choi, Dongyu Chen, Fan Du, Rene Zeto, and Andrea Armani
Photon. Res. 7(8) 926-932 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved