Light-emitting device

A light-emitting device, comprising:

• a light-emitting element array including a plurality of light-emitting elements;
• and
• a dummy light-emitting element that surrounds the light-emitting element array, wherein
• the dummy light-emitting element and each light-emitting element of the plurality of light-emitting elements include a stacked structure including a stack of a first compound semiconductor layer, an active layer, and a second compound semiconductor layer,
• the first compound semiconductor layer has a first surface and a second surface,
• the second surface is opposed to the first surface,
• the active layer faces the second surface of the first compound semiconductor layer,
• the second compound semiconductor layer has
• a first surface that faces the active layer, and
• a second surface opposed to the first surface of the second compound semiconductor layer,
• each light-emitting element of the plurality of light-emitting elements further includes:
• a first light reflection layer on a base part surface, wherein the base part surface is on a side of the first surface of the first compound semiconductor layer, and
• the first light reflection layer, which functions as a concave mirror, is in a portion of the base part surface,
• a second light reflection layer on a side of the second surface of the second compound semiconductor layer, wherein the second light reflection layer has a flat shape, and
• a first convex part in the portion of the base part surface with respect to the second surface of the first compound semiconductor layer,
• the dummy light-emitting element further includes:
• a dummy first light reflection layer, including a dummy concave mirror section, on an extending part of the base part surface, wherein
• the extending part of the base part surface is on the side of the first surface of the first compound semiconductor layer, and
• the dummy first light reflection layer is in a portion of the extending part,
• the second light reflection layer, and
• a second convex part in the portion of the extending part of the base part surface with respect to the second surface of the first compound semiconductor layer,
• the dummy light-emitting element excludes a function of emission of light even though a current flows through the stacked structure, and
• in the dummy light-emitting element, a value of a radius of curvature of a center part of the second convex part is less than a value of a resonator length of the dummy light-emitting element.

A light-emitting device, comprising:

• a light-emitting element array that includes a plurality of light-emitting elements;
• a dummy concave mirror section that surrounds the light-emitting element array, wherein each light-emitting element of the plurality of light-emitting elements includes:
• a stacked structure including a stack of a first compound semiconductor layer, an active layer, and a second compound semiconductor layer, wherein
• the first compound semiconductor layer has a first surface and a second surface,
• the second surface is opposed to the first surface,
• the active layer faces the second surface of the first compound semiconductor layer, and
• the second compound semiconductor layer has
• a first surface that faces the active layer, and
• a second surface opposed to the first surface of the second compound semiconductor layer;
• a first light reflection layer on a base part surface, wherein the base part surface is on a side of the first surface of the first compound semiconductor layer;
• and
• a second light reflection layer on a side of the second surface of the second compound semiconductor layer, wherein the second light reflection layer has a flat shape;
• a first convex part in a portion of the base part surface with respect to the second surface of the first compound semiconductor layer, wherein the first light reflection layer, which functions as a concave mirror, is in the portion of the base part surface;
• and
• a second convex part in a portion of an extending part of the base part surface with respect to the second surface of the first compound semiconductor layer, wherein
• the dummy concave mirror section is in the portion of the extending part of the base part surface, and
• H1<H2 is satisfied, where H1 is a height of the first convex part, and H2 is a height of the second convex part.