We propose a novel photonic dot (PD) structure which is designed to emit a single photon horizontally from the quantum dot to the built-in waveguide (WG). The structure is a micro-cavity enclosed by gold metal mirrors having high reflectance in the 1-mu m wavelength region; it uses several dynamic mechanisms to turn the photon emission on and off. We computed the optical characteristics of the PD using the three-dimensional finite difference time domain method, and found that the structure can limit the emission wavelength to within 1.3 +/- 0.007 mu m. We fabricated the PD structure using electron-beam lithography with wet etching, and investigated the emission spectra from the WG. The narrow emission peak and its temperature dependence revealed the possibility that a temperature variation of only 4 degrees C is enough to control the photon emission from the PD structure. The PD will be applicable to future solid-state planar integrated circuits for optical quantum computation. (c) 2006 Elsevier B.V. All rights reserved.