Second-harmonic generation in a silicon-carbide-based photonic crystal nanocavity

Yamada, Shota; Song, Biao; Jeon, Songhee; Upham, Jeremy; Tanaka, Yoshinori; Asano, Tanemasa; Noda, Susumu

doi:10.1364/ol.39.001768

Cited by 83 publications

(70 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The generated harmonic originating from the bulk nonlinearity is propagating and appears to be strongly scattered upon interaction with the PhC lattice. The extended parallel lines previously reported in SHG experiments are present in both cavities, 6,18 along with the cross-shaped pattern, where the second harmonic is seen to traverse the lattice along the ΓK direction. With the H0 cavity, a ring appears at the center, overlapping with the position of the first set of holes surrounding the polarization hotspots.…”

Section: Apl Photonics 2 031301 (2017)supporting

confidence: 65%

Efficient continuous-wave nonlinear frequency conversion in high-Q gallium nitride photonic crystal cavities on silicon

et al. 2017

View full text Add to dashboard Cite

We report on nonlinear frequency conversion from the telecom range via second harmonic generation (SHG) and third harmonic generation (THG) in suspended gallium nitride slab photonic crystal (PhC) cavities on silicon, under continuous-wave resonant excitation. Optimized two-dimensional PhC cavities with augmented far-field coupling have been characterized with quality factors as high as 4.4 × 104, approaching the computed theoretical values. The strong enhancement in light confinement has enabled efficient SHG, achieving a normalized conversion efficiency of 2.4 × 10−3 W−1, as well as simultaneous THG. SHG emission power of up to 0.74 nW has been detected without saturation. The results herein validate the suitability of gallium nitride for integrated nonlinear optical processing.

show abstract

Section: Apl Photonics 2 031301 (2017)supporting

confidence: 65%

Efficient continuous-wave nonlinear frequency conversion in high-Q gallium nitride photonic crystal cavities on silicon

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Recently, Raman lasing in high Q silicon PCCs was demonstrated [6], while the χ (2) processes of second harmonic generation (SHG) and sum frequency generation (SFG) have also been demonstrated in such cavities in III-V semiconductors [17][18][19][20][21][22][23], as well as in other materials such as lithium niobate [24], SiC [25] and Si [26]. However, as described above, the difficulty in engineering cavities with modes that are far apart in frequency has limited the ability to increase the efficiency at low power levels.…”

Section: Introductionmentioning

confidence: 99%

Multimode nanobeam cavities for nonlinear optics: high quality resonances separated by an octave

Buckley¹,

Radulaski²,

Zhang³

et al. 2014

Opt. Express

View full text Add to dashboard Cite

show abstract

“…In recent years, there has been increasing interest in optical parametric processes in high-Q micro-/nano-cavities, which exhibit great potential for dramatically enhancing parametric generation [6][7][8][9][10][11][12][13][14][15][16][17][18][19] . However, their efficiencies rely crucially on frequency matching among the interacting cavity modes, which is generally deteriorated by device dispersion.…”

mentioning

confidence: 99%

Selective engineering of cavity resonance for frequency matching in optical parametric processes

Rogers

Jiang

et al. 2014

Applied Physics Letters

View full text Add to dashboard Cite

We propose to selectively engineer a single cavity resonance to achieve frequency matching for optical parametric processes in high-Q microresonators. For this purpose, we demonstrate an approach, selective mode splitting (SMS), to precisely shift a targeted cavity resonance, while leaving other cavity modes intact. We apply SMS to achieve efficient parametric generation via four-wave mixing in high-Q silicon microresonators. The proposed approach is of great potential for broad applications in integrated nonlinear photonics.Optical parametric processes, including four-wave mixing (FWM), second-/third-harmonic generation (SHG/THG), parametric down-conversion (PDC), etc., have broad applications ranging from photonic signal processing 1,2 , tunable coherent radiation 3 , frequency metrology 4 , to quantum information processing 5 . In recent years, there has been increasing interest in optical parametric processes in high-Q micro-/nano-cavities, which exhibit great potential for dramatically enhancing parametric generation [6][7][8][9][10][11][12][13][14][15][16][17][18][19] . However, their efficiencies rely crucially on frequency matching among the interacting cavity modes, which is generally deteriorated by device dispersion. Frequency matching is particularly challenging in high-Q cavities, due to the narrow linewidths of cavity resonances.To date, a variety of methods have been proposed for frequency matching. For FWM, a χ (3) nonlinear process, current methods primarily focus on engineering groupvelocity dispersion of the devices 7,8,10,13,14,20 . For SHG, a χ (2) nonlinear process, intermodal dispersion or birefringence is generally employed to mitigate the frequency mismatch 11,12,[15][16][17][18][19] . These methods rely on manipulating material/waveguide dispersion of devices, which collectively shifts the resonance frequencies of all cavity modes by different extents.In this paper, we propose and demonstrate an effective approach for frequency matching that can be applied universally to optical parametric processes. Instead of modifying all cavity resonances via dispersion engineering, we directly shift a single cavity resonance to a desired frequency, while leaving other cavity modes intact. This is realized by splitting the targeted cavity mode at ω m into two modes at new frequencies ω m ± β m . By controlling the magnitude of splitting, one resonance can be shifted to coincide with the desired frequency ( Fig. 1(a)). We term this approach selective mode splitting (SMS).SMS can be applied to various χ (2) /χ (3) processes ( Fig. 1(b-d)). For example, degenerate FWM requires three interacting cavity modes to be equally spaced in a) Electronic mail: qiang.lin@rochester.edu. frequency, ω signal −ω pump = ω pump −ω idler , which is often not satisfied due to device dispersion. The problem can be solved by shifting one cavity mode to the desired frequency, thus enabling parametric generation ( Fig. 1(b)). SMS is particularly useful for nonlinear processes including SHG/THG and PDC ( Fig. 1(c)(d)), where ...

show abstract

Second-harmonic generation in a silicon-carbide-based photonic crystal nanocavity

Cited by 83 publications

References 21 publications

Efficient continuous-wave nonlinear frequency conversion in high-Q gallium nitride photonic crystal cavities on silicon

Efficient continuous-wave nonlinear frequency conversion in high-Q gallium nitride photonic crystal cavities on silicon

Multimode nanobeam cavities for nonlinear optics: high quality resonances separated by an octave

Selective engineering of cavity resonance for frequency matching in optical parametric processes

Contact Info

Product

Resources

About