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Recent Results on ZnSe‐Based Vertical‐Cavity Surface Emitting Lasers Operating in the Blue
Author(s) -
Floyd P. D.,
Furdyna J. K.,
Luo H.,
Merz J. L.,
Yamada Y.,
Yokogawa T.
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221870213
Subject(s) - vertical cavity surface emitting laser , lasing threshold , optoelectronics , materials science , laser , fabrication , resonator , optics , distributed bragg reflector , distributed bragg reflector laser , optical cavity , physics , wavelength , medicine , alternative medicine , pathology
The first successful operation of vertical‐cavity surface emitting lasers (VCSELs) operating in the blue is achieved using ZnSe/ZnCdSe multilayers. The vertical‐cavity resonators are constructed by depositing SiO 2 /SiN distributed Bragg reflectors on both sides of the active ZnSe/ZnCdSe region. Pulsed optical pumping is used to demonstrate the feasibility of this configuration. Although our first attempts at VCSEL operation required significant threshold excitation power densities (75 kW/cm 2 at 2 K for lasing at 477 nm), even modest modifications in design and fabrication of subsequent structures already show substantial improvement in these figures.