Optical bistability on reflection with an InSb étalon controlled by a guided wave.

Area of Science:

• Optics and Photonics
• Condensed Matter Physics
• Materials Science

Background:

• Optical bistability is a key phenomenon in nonlinear optics, crucial for optical switching and memory devices.
• Indium antimonide (InSb) is a semiconductor material with significant optical nonlinearities, making it suitable for such applications.

Purpose of the Study:

• To experimentally investigate optical bistability in a gold-coated InSb étalon.
• To explore the control mechanism of bistability using a guided beam.
• To assess the potential for addressing multiple optical spots.

Main Methods:

• Utilized an indium antimonide (InSb) étalon coated with gold on one face.
• Conducted experiments at a cryogenic temperature of 80 K.
• Employed a 5.59-micrometer wavelength laser for excitation.
• Observed bistability in reflection, controlled by a coupled edge beam.

Main Results:

• Successfully demonstrated optical bistability in the InSb étalon configuration.
• Confirmed that the bistability is controllable via a guided beam coupled through the étalon's edge.
• The experimental geometry indicated the feasibility of addressing numerous individual optical spots.

Conclusions:

• The study confirms the viability of using InSb étalons for optical bistability at cryogenic temperatures.
• The demonstrated control method suggests potential for integrated optical devices.
• The geometry is promising for parallel processing and optical computing applications.