Results 221 to 230 of about 2,390,699 (275)

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

1-MHz linewidth VCSEL enabled by monolithically integrated passive cavity for high-stability chip-scale atomic clocks. [PDF]

Light Sci Appl
Tang Z, Li C, Zhang X, Ren W, Shen K, Li C, Bai Q, Li J, Ren A, Wang H, Luo X, Xu H, Wu J.   +12 more
europepmc   +1 more source

Scalable quantum photonic platform based on site-controlled quantum dots coupled to circular Bragg grating resonators. [PDF]

Light Sci Appl
Gaur K, Barua A, Tripathi S, Roche LJ, Wilksen S, Steinhoff A, Baraz S, Nitin N, Palekar CC, Koulas-Simos A, Limame I, Mudi P, Rodt S, Gies C, Reitzenstein S.   +14 more
europepmc   +1 more source

Direct Writing High-Resolution Quantum Dot Micro-Patterns: Toward High-Performance Electroluminescence Behavior. [PDF]

Adv Mater
Zhang M, Sun R, Xiao Z, Deng H, Li Y, Bai Y, Jiang L, Liu H.   +7 more
europepmc   +1 more source

Coherent cavity coupling in O-band silicon photonic sensors for water environment detection. [PDF]

Sci Rep
Janaszek B, Kieliszczyk M, Butt MA.
europepmc   +1 more source

Coherent light emission and electrical tuning of WS2-WSe2 interlayer excitons

Novotny L, Shan S, Moilanen A, Ziegler J, Lin Q, Xue G, Łempicka-Mirek K, Callegari D, Taniguchi T, Watanabe K, Moselund K, Liu K, Iadanza S.   +12 more
europepmc   +1 more source

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Linewidth measurement of gratings on photomasks: a simple technique

Applied Optics, 1992
A novel laser scatterometer linewidth measurement tool has been developed for critical dimension metrology of photomasks. Calculation of the linewidth is based on a rigorous theoretical model, thus eliminating the need for calibrations. In addition the effect of the glass substrate on which the photomask grating is placed is explicitly taken into ...
John Robert McNeil, S Sohail H Naqvi
exaly   +3 more sources

Measurement of Lorentzian linewidths

Nuclear Instruments and Methods, 1975
Abstract A new method is presented for the least-squares analysis of pulse height spectra from semiconductor detector-multichannel analyser systems, which does not involve the procedure of matching exponential tails onto Gaussian functions. We show that for a particular set of data taken at the Rutherford Laboratory the use of two Gaussian functions,
B.L. Roberts, R.A.J. Riddle, G.T.A. Squier   +2 more
openaire   +1 more source

Laser-linewidth measurement with a Fizeau wavemeter

Optics Letters, 1988
It is shown theoretically and experimentally that a Fizeau wedge wavemeter typically used to measure laser wavelength can also be used to measure the linewidth of a pulsed or cw laser. Linewidths as small as a few hundred megahertz can be measured by choosing the thickness of the wedge properly.
C, Reiser, P, Esherick, R B, Lopert
openaire   +2 more sources

Laser diode linewidth measurements

Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003., 2004
A spectrum of laser diode radiation forms a qualitative criterion of the laser diode applicability as a fiber telecommunications source. Hence, there is need to measure/estimate its spectral linewidth. Having a few different commercial laser sources at the range of third telecommunication window we developed laser linewidth measurements.
K.M. Abramski, W. Rodzen, P.R. Kaczmarek, L. Czurak, A. Budnicki   +4 more
openaire   +1 more source