Pulsed second-harmonic generation in nonlinear, one-dimensional, periodic structures

被引:331
作者
Scalora, M
Bloemer, MJ
Manka, AS
Dowling, JP
Bowden, CM
Viswanathan, R
Haus, JW
机构
[1] USA, MISSILE COMMAND,CTR RES DEV & ENGN,ST,WS, RD,AMSMI, REDSTONE ARSENAL, AL 35898 USA
[2] NATL SCI FDN, ARLINGTON, VA 22230 USA
[3] RENSSELAER POLYTECH INST, DEPT PHYS, TROY, NY 12180 USA
来源
PHYSICAL REVIEW A | 1997年 / 56卷 / 04期
关键词
D O I
10.1103/PhysRevA.56.3166
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a numerical study of second-harmonic (SR) generation in a one-dimensional, generic, photonic band-gap material that is doped with a nonlinear chi((2)) medium. We show that a 20-period, 12-mu m structure can generate short SH pulses (similar in duration to pump pulses) whose energy and power levels may be 2-3 orders of magnitude larger than the energy and power levels produced by an equivalent length of a phase-matched, bulk medium. This phenomenon comes about as a result of the combination of high electromagnetic mode density of states, low group velocity. and spatial phase locking of the fields near the photonic band edge. The structure is designed so that the pump pulse is tuned near the first-order photonic band edge, and the SH signal is generated near the band edge of the second-order gap. This maximizes the density of available field modes for both the pump and SR field. Our results show that the chi(2) response is effectively enhanced by several orders of magnitude. Therefore, mm- or cm-long, quasi-phase-matched devices could be replaced by these simple layered structures of only a few micrometers in length. This has important applications to high-energy lasers, Raman-type sources, and frequency up-and down-conversion schemes.
引用
收藏
页码:3166 / 3174
页数:9
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